Clause | Tough-Level-Clauses-Exercise-Answer-Key-with-Explanation | Applied English Grammar

Tough Level Clauses Exercise – Answer Key with Explanation

Section A: Identify the Type of Clause (With Explanation)

1. Noun Clause – “why he refused the offer” works as the object of the verb “understand.”
2. Adjective (Relative) Clause – “that you submitted yesterday” describes the noun “proposal.”
3. Adverb Clause of Manner/Comparison – “as if she owned the place” shows manner of behavior.
4. Noun Clause – “Whoever finishes first” acts as the subject of the sentence.
5. Adjective Clause – “why she resigned” modifies the noun “reason.”
6. Adjective Clause – “when we first met in Delhi” modifies “the day.”
7. Adverb Clause of Result – “that everyone believed him” shows the result of speaking confidently.
8. Noun Clause – “What he said” acts as the subject of the verb “shocked.”
9. Adjective Clause – “where he was born” modifies “house.”
10. Adverb Clause of Concession – “Although he had prepared well” shows contrast.

Section B: Combined Sentences (Explanation)

1. “that changed modern medicine” – Relative clause modifying “discovery.”
2. “because he woke up late” – Adverb clause of reason.
3. “whose son is a pilot” – Relative clause showing possession.
4. “Although the team played very well” – Adverb clause of concession.
5. “even though she was under pressure” – Adverb clause of contrast.
6. “where I studied for ten years” – Relative clause modifying “school.”
7. “that surprised everyone” – Relative clause modifying “something.”
8. “which offended many people” – Relative clause modifying “movie.”
9. “without informing anyone” – Reduced adverbial clause (participle phrase).
10. “Though the player was injured” – Adverb clause of concession.

Section C: Error Correction (Explanation)

1. Remove “that” – Only one subordinating conjunction is needed.
2. Use “who” – Refers to a person, not “which.”
3. Indirect question – Use statement word order: “where I was going.”
4. Remove “there” – Repetition of place reference.
5. No error – Structure is correct.
6. Use either “unless” or “if,” not both together.
7. Use either “reason why” or “reason that,” not “because.”
8. Use subjunctive “were” after “as if” for unreal comparison.
9. Remove “about” – “idea” already connects directly to noun clause.
10. Use plural “players” – “one of the best players who have…” (verb agrees with “players”).

Section D: Transformation (Explanation)

1. Noun clause used as subject beginning with “What.”
2. Relative clause reduced to participle phrase.
3. Coordinating conjunction replaced with adverb clause of concession.
4. “Where” replaced with formal relative structure “in which.”
5. Conditional clause rewritten using “unless.”
6. “So…that” replaced with “enough to” structure.
7. “When” replaced with prepositional relative clause “on which.”
8. Subjunctive mood retained for unreal comparison.
9. Relative clause reduced to present participle phrase.
10. Adverb clause reduced to participle clause “Being ill.”

Section E: Fill in the Blanks (Explanation)

1. The moment – Shows time immediately after something happens.
2. lest – Expresses negative purpose (avoid something happening).
3. provided that – Shows condition.
4. whereby – Means “by which method.”
5. Even though – Shows concession/contrast.
6. provided that – Indicates condition.
7. as though – Shows comparison of manner.
8. Whoever – Introduces a noun clause acting as subject.
9. in case – Shows precaution.
10. whereas – Shows contrast between two ideas.

Complete Tough Clause Exercise with Detailed Explanation

Tough Level Clauses Exercise – Answer Key

Section A: Identify the Type of Clause

1. Noun Clause – “why he refused the offer” acts as object of “understand.”
2. Adjective (Relative) Clause – “that you submitted yesterday” modifies “proposal.”
3. Adverb Clause of Manner – “as if she owned the place.”
4. Noun Clause – “Whoever finishes first” acts as subject.
5. Adjective Clause – “why she resigned” modifies “reason.”
6. Adjective Clause – “when we first met in Delhi” modifies “day.”
7. Adverb Clause of Result – “that everyone believed him.”
8. Noun Clause – “What he said” acts as subject.
9. Adjective Clause – “where he was born” modifies “house.”
10. Adverb Clause of Concession – “Although he had prepared well.”

Section B: Combine the Sentences

1. The scientist made a discovery that changed modern medicine.
2. He missed the train because he woke up late.
3. I met a woman whose son is a pilot.
4. Although the team played very well, they lost the match.
5. She did not reveal the secret even though she was under pressure.
6. This is the school where I studied for ten years.
7. He promised something that surprised everyone.
8. The movie which offended many people was banned.
9. She left the office without informing anyone.
10. Though the player was injured, he continued playing bravely.

Section C: Error Correction

1. I don’t know why he reacted like that.
2. The person who you are talking about is my mentor.
3. She asked me where I was going.
4. This is the place where I met him.
5. No error.
6. I will not go unless you come with me.
7. The reason why he failed is unclear.
8. She speaks as if she were the manager.
9. I have no idea what he wants.
10. He is one of the best players who have ever played.

Section D: Transformation

1. What I know is that she is honest.
2. The boy standing there is my cousin.
3. Although he was tired, he continued working.
4. This is the house in which I was born.
5. Unless you work hard, you will not succeed.
6. She is intelligent enough to solve it easily.
7. Being ill, he did not attend the meeting.
8. The book written by Orwell is still relevant.
9. She spoke as if she were the only one who knew the truth.
10. On seeing the tiger, he ran away.

Section E: Fill in the Blanks

1. The moment
2. lest
3. provided that
4. whereby
5. Even though
6. provided that
7. as though
8. Whoever
9. in case
10. whereas

Total Answers: 50 (Tough Level Clause Practice)

Ultra-Advanced Clause Test – Olympiad Level

Instructions: Read each question carefully. Identify clause type, correct errors, transform structures, and analyze embedded clauses. This test is designed for high-level grammar mastery.

Section A: Identify the Clause Type (Analytical Level)

1. What she implied was not what she actually meant.
2. The hypothesis that the researcher proposed was widely debated.
3. No sooner had he arrived than the meeting began.
4. Wherever you go, I will follow.
5. The theory, which many scientists had rejected, later proved correct.
6. If what you say is true, we must reconsider our decision.
7. The moment he realized what had happened, he apologized.
8. Hardly had she spoken when the audience interrupted her.
9. The candidate whom they believed to be honest turned out corrupt.
10. Whoever said that honesty does not pay was mistaken.

Section B: Error Detection (Very Advanced)

1. I don’t know that whether he will accept the proposal.
2. The man who they say is honest have denied the allegations.
3. No sooner he had finished than he left the room.
4. This is the only book which I could find it.
5. She behaves as if she has known everything.
6. The reason why he resigned is because he was dissatisfied.
7. I will call you until I reach home.
8. He is one of those students who always performs well, isn’t he?
9. Scarcely had the bell rang when the students rushed out.
10. He denied that he had took the money.

Section C: Transformation & Reduction

1. Although he was exhausted, he continued working. (Reduce clause)
2. I know that she will succeed. (Begin with “What…”)
3. The girl who is singing on stage is my sister. (Reduce clause)
4. If you had informed me earlier, I would have helped you. (Begin with “Had…”)
5. The house where he was born has been renovated. (Use “in which”)
6. He was so tired that he could not stand. (Rewrite without “so…that”)
7. Because he was ill, he did not attend the meeting. (Use participle clause)
8. The book which was written by Orwell is still relevant. (Reduce clause)
9. She spoke as if she knew the truth. (Change to unreal comparison correctly)
10. When he saw the tiger, he ran away. (Use “On seeing…”)

Section D: Embedded & Mixed Clauses (Deep Analysis)

1. Explain the structure of: “What he believes that she said is incorrect.”
2. Identify all clauses: “If what you think is correct, whoever objects must justify why they disagree.”
3. Break down: “The reason that she gave why she left surprised everyone.”
4. Analyze: “Hardly had he spoken when the lights went out.”
5. Identify clause hierarchy: “I wonder whether what he promised will actually happen.”

Total Questions: 35 (Ultra-Advanced Level)

Ultra-Advanced Clause Test – Answer Key with Explanation

Section A: Identify the Clause Type

1. Noun Clause (Subject Complement + Subject Clause)
   “What she implied” – Noun clause (subject).
   “what she actually meant” – Noun clause (object complement).
2. Adjective (Relative) Clause
   “that the researcher proposed” modifies “hypothesis.”
3. Adverb Clause (Inversion – Time)
   “No sooner…than” shows time sequence with inversion.
4. Adverb Clause of Place
   “Wherever you go” modifies verb “will follow.”
5. Non-Defining Relative Clause
   “which many scientists had rejected” gives extra information.
6. Mixed Clause Structure
   “If what you say is true” → Adverb clause (condition).
   “what you say” → Noun clause inside the conditional clause.
7. Noun Clause + Adverb Clause
   “what had happened” → Noun clause.
   “The moment he realized…” → Adverb clause of time.
8. Adverb Clause (Inversion – Time)
   “Hardly…when” expresses immediate sequence.
9. Adjective Clause (Reduced Object Form)
   “whom they believed to be honest” modifies “candidate.”
10. Noun Clause (Subject)
    “Whoever said that honesty does not pay” acts as subject.

Section B: Error Detection (Corrected + Explanation)

1. Incorrect: I don’t know that whether he will accept.
   Correct: I don’t know whether he will accept the proposal.
   Explanation: Do not use “that” and “whether” together.
2. Incorrect: who they say is honest have denied.
   Correct: who they say is honest has denied.
   Explanation: Verb agrees with singular “man.”
3. Incorrect: No sooner he had finished.
   Correct: No sooner had he finished than he left.
   Explanation: Inversion required after “No sooner.”
4. Incorrect: which I could find it.
   Correct: which I could find.
   Explanation: Object “it” unnecessary.
5. Incorrect: she has known everything.
   Correct: she knows everything.
   Explanation: Use present simple after “as if.”
6. Incorrect: reason why…is because.
   Correct: The reason why he resigned is that he was dissatisfied.
   Explanation: Avoid double connectors.
7. Incorrect: until I reach home.
   Correct: I will call you when I reach home.
   Explanation: “Until” means up to that time.
8. Incorrect tag agreement.
   Correct: He is one of those students who always perform well, isn’t he?
   Explanation: “who” refers to plural “students.”
9. Incorrect: bell rang.
   Correct: Scarcely had the bell rung when the students rushed out.
   Explanation: Past participle needed.
10. Incorrect: had took.
    Correct: had taken.
    Explanation: Use past participle after “had.”

Section C: Transformation & Reduction

1. Being exhausted, he continued working.
2. What I know is that she will succeed.
3. The girl singing on stage is my sister.
4. Had you informed me earlier, I would have helped you.
5. The house in which he was born has been renovated.
6. He was too tired to stand.
7. Being ill, he did not attend the meeting.
8. The book written by Orwell is still relevant.
9. She spoke as if she were the only one who knew the truth.
10. On seeing the tiger, he ran away.

Section D: Embedded & Mixed Clause Analysis

1. “What he believes” → Noun clause (subject).
   “that she said” → Noun clause embedded within object.
2. “If what you think is correct” → Adverb clause (condition).
   “what you think” → Noun clause.
   “whoever objects” → Noun clause (subject).
   “why they disagree” → Noun clause (object of justify).
3. “The reason that she gave” → Adjective clause.
   “why she left” → Noun clause modifying “reason.”
4. “Hardly had he spoken” → Inverted adverb clause (time).
   “when the lights went out” → Adverb clause of time.
5. “I wonder” main clause.
   “whether what he promised will actually happen” → Noun clause.
   “what he promised” → Embedded noun clause.

Ultra-Advanced Clause Test – Complete Analytical Answer Key