WREN & MARTIN's English grammar-10 MCQs on Changing Complex Sentences into Compound Sentences
10 MCQs on Changing Complex Sentences into Compound Sentences
1. Complex sentence: "Although she was tired, she continued to work until the project was completed." Which of the following is the correct compound sentence?
- A) She was tired, but she continued to work until the project was completed.
- B) She was tired because she continued to work until the project was completed.
- C) Being tired, she continued to work until the project was completed.
- D) She was so tired that she could not continue to work until the project was completed.
Answer: A) She was tired, but she continued to work until the project was completed. (The subordinating conjunction "although" showing contrast is replaced by the coordinating conjunction "but" — the two contrasting ideas are now joined as two independent clauses of equal grammatical rank.)
2. Complex sentence: "Since he had studied hard, he passed the examination with distinction." Which of the following is the correct compound sentence?
- A) He studied hard so that he passed the examination with distinction.
- B) He had studied hard, so he passed the examination with distinction.
- C) Having studied hard, he passed the examination with distinction.
- D) He studied hard because he passed the examination with distinction.
Answer: B) He had studied hard, so he passed the examination with distinction. (The subordinating conjunction "since" showing cause is replaced by the coordinating conjunction "so" — the cause and effect relationship is now expressed through two independent clauses joined by "so.")
3. Complex sentence: "Unless you apologise immediately, she will not forgive you for what you said." Which of the following is the correct compound sentence?
- A) You must apologise immediately and she will not forgive you for what you said.
- B) You must apologise immediately because she will not forgive you for what you said.
- C) Apologise immediately so that she will forgive you for what you said.
- D) You must apologise immediately, or she will not forgive you for what you said.
Answer: D) You must apologise immediately, or she will not forgive you for what you said. (The subordinating conjunction "unless" showing condition is replaced by the coordinating conjunction "or" — the conditional relationship is now expressed as an alternative through two independent clauses.)
4. Complex sentence: "When the bell rang, all the students rushed out of the classroom eagerly." Which of the following is the correct compound sentence?
- A) The bell rang and all the students rushed out of the classroom eagerly.
- B) The bell rang because all the students rushed out of the classroom eagerly.
- C) All the students rushed out of the classroom eagerly since the bell rang.
- D) The bell rang so that all the students rushed out of the classroom eagerly.
Answer: A) The bell rang and all the students rushed out of the classroom eagerly. (The subordinating conjunction "when" showing time is replaced by the coordinating conjunction "and" — the two events that happened in immediate sequence are now joined as two independent clauses of equal rank.)
5. Complex sentence: "Though he is very wealthy, he lives a simple and modest life." Which of the following is the correct compound sentence?
- A) He is very wealthy because he lives a simple and modest life.
- B) He is very wealthy so he lives a simple and modest life.
- C) He is very wealthy, yet he lives a simple and modest life.
- D) Being very wealthy, he lives a simple and modest life.
Answer: C) He is very wealthy, yet he lives a simple and modest life. (The subordinating conjunction "though" showing concession is replaced by the coordinating conjunction "yet" — the contrast between his wealth and his simple lifestyle is now expressed through two independent clauses joined by "yet.")
6. Complex sentence: "As soon as the rain stopped, the children ran out to play in the garden." Which of the following is the correct compound sentence?
- A) The rain stopped because the children ran out to play in the garden.
- B) The rain stopped and the children immediately ran out to play in the garden.
- C) The children ran out to play in the garden although the rain had stopped.
- D) The rain stopped so that the children could run out to play in the garden.
Answer: B) The rain stopped and the children immediately ran out to play in the garden. (The subordinating conjunction "as soon as" showing immediate sequence is replaced by the coordinating conjunction "and" with the adverb "immediately" — the sense of immediacy is preserved while the two clauses are made grammatically equal and independent.)
7. Complex sentence: "Because the roads were flooded, the school bus could not reach the village on time." Which of the following is the correct compound sentence?
- A) The roads were flooded but the school bus could not reach the village on time.
- B) The roads were flooded when the school bus could not reach the village on time.
- C) The roads were flooded, so the school bus could not reach the village on time.
- D) The roads were flooded although the school bus could not reach the village on time.
Answer: C) The roads were flooded, so the school bus could not reach the village on time. (The subordinating conjunction "because" showing cause is replaced by the coordinating conjunction "so" — the cause and effect relationship between the flooded roads and the delayed bus is now expressed through two independent clauses of equal grammatical rank.)
8. Complex sentence: "If you work consistently and with dedication, you will certainly achieve your goals." Which of the following is the correct compound sentence?
- A) Work consistently and with dedication because you will certainly achieve your goals.
- B) You must work consistently and with dedication, or you will certainly not achieve your goals.
- C) Working consistently and with dedication, you will certainly achieve your goals.
- D) You work consistently and with dedication although you will certainly achieve your goals.
Answer: B) You must work consistently and with dedication, or you will certainly not achieve your goals. (The subordinating conjunction "if" showing condition is replaced by the coordinating conjunction "or" — the conditional meaning is preserved by expressing the alternative negative consequence through two independent clauses joined by "or.")
9. Complex sentence: "While she was preparing dinner, her husband was helping the children with their homework." Which of the following is the correct compound sentence?
- A) She was preparing dinner because her husband was helping the children with their homework.
- B) She was preparing dinner, and her husband was helping the children with their homework.
- C) She was preparing dinner so her husband was helping the children with their homework.
- D) She was preparing dinner although her husband was helping the children with their homework.
Answer: B) She was preparing dinner, and her husband was helping the children with their homework. (The subordinating conjunction "while" showing simultaneous actions is replaced by the coordinating conjunction "and" — the two actions happening at the same time are now joined as two independent clauses of equal grammatical rank.)
10. Complex sentence: "Even though he made several mistakes, he was not discouraged and continued to try his best." Which of the following is the correct compound sentence?
- A) He made several mistakes because he was not discouraged and continued to try his best.
- B) He made several mistakes so he was not discouraged and continued to try his best.
- C) Making several mistakes, he was not discouraged and continued to try his best.
- D) He made several mistakes, but he was not discouraged and continued to try his best.
Answer: D) He made several mistakes, but he was not discouraged and continued to try his best. (The subordinating conjunction "even though" showing concession is replaced by the coordinating conjunction "but" — the contrast between making mistakes and remaining undiscouraged is now expressed through two independent clauses joined by "but" indicating an unexpected or contrasting result.)
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