Bài 1 ?

2. Everyone was surprised to see Geoff leave the party early.

- To everyone's surprise, Geoff left  the party early

3. It was so late that nothing could be done.

- It was too was too late to do something

4. Is this the best price you can offer?

- Can't you offer the better price?

5. I don't go to church every Sunday any longer.

-I used to go to the church every Sunday

6. I sent my friend a letter in London last week. 

-A letter was sent to my friend in London last week

7. I last saw him when I was a student.

-I haven't seen him since I was a student

8. "Don't forget to bring your passports with you when you go abroad."

- She reminded mê to bring my passorts with me when i go abroad

9. Smoking is not allowed in the ward.

- Would you mind not smoking in the ward?

10. He failed the exam because of his laziness.

-Because he was lazy ,he failed the exam

Bài 2

1. I wanted to finish my homework, so I stayed up late last night. ( as )

-> I stayed up late last night so as to finish my homework

2. The thick fog prevented me from driving to work . ( made )

-> The thick fog made it impossible for me to drive to work

3. Nick hasn't been to Viet Nam before. ( time )

-> This is the first time Nick has been to VN

4. Mr. Lam teaches Englishh. Mr. Hai teaches Math. (subject )

-> Mr. Lam doesn't teach the same subject as Mr Hai

5. I 'd rather not see him tomorrow. ( want )

-> I don't want to see him tomorrow.

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(mình có tham khảo mạng ;-;' )

=>
2. To everyone's surprise, Geoff left the party early.
3. It was too late for anything to be done.
4. Can't you offer the better price?
5. I used to go to church every Sunday.
6. A letter was sent to my friend in London by me last week.
7. I haven't seen him since I was a student.
8. She reminded me not to forget to bring my passports with me when I went abroad.
9. Would you mind not smoking in the ward?

10. Because he was lazy, he failed the exam.

II/
1. I stayed up late last night as I wanted to finish my homework. 
2. The thick fog made it impossible for me to drive to work.
3. This is the first time Nick has been to Vietnam.
4. Mr.Lam doesn't teach the same subject as Mr.Hai.
5. I don't want to see him tomorrow.