Sure! Here are the completed sentences:

1. The children have to go to bed now.
→ It’s time the children **went to bed**.

2. The furniture was so expensive that I couldn’t buy it.
→ It was such **an expensive piece of furniture** that I couldn’t buy it.

3. Mr. Long is willing to invest his money in this company.
→ Mr. Long **doesn’t mind investing** his money in this company.

4. Did Peter enjoy listening to Rap music last year?
→ Was **Peter enjoying** listening to Rap music last year?

5. My father spent eight hours flying from here to Korea.
→ My father took **eight hours to fly** from here to Korea.

6. Although Mrs. Green is disabled, she runs five kilometers every morning.
→ Despite **being disabled, Mrs. Green runs** five kilometers every morning.

7. Mrs. Grace is very sensitive, so you’d better not comment on her appearance.
→ Because **Mrs. Grace is very sensitive, you’d better not comment on her appearance**.

8. We all thought Bill’s story was very amusing.
→ We were all very **amused by Bill's story**.

9. Is it necessary for Lan to wear uniform when going to school?
→ Does **Lan need to wear a uniform** when going to school?

10. He is very kind to donate money to the charity.
→ It’s **kind of him to donate** money to the charity.

**II. Complete the second sentence so that it has a similar meaning to the first sentence, using the word given.**

1. Three hundred students entered the swimming competition last year. (PART)
→ Three hundred students **took part in** the swimming competition last year.

2. You should go to the dentist at once. (PUT)
→ Don’t **put off going to** the dentist at once.

3. Duong liked to read comics when he was in grade 3. (CRAZY)
→ Duong was **crazy about reading** comics when he was in grade 3.

4. Although he studied very hard, he still didn’t pass the exam. (DESPITE)
→ He still didn’t pass the exam **despite studying very hard**.

5. The tennis players’ match is still going on. (FINISHED)
→ The tennis players **haven’t finished their match** yet.