4. -I'll be back before Christmas.

-I wish you　　　　 back before Thanksgiving.

A. come　　　　　　　　 B. would come　　　 C. will come　　　 D. came

3. Without electricity human life　　　 quite different today.

A. is　　　　 B. will be　　　　 C. would have been D. would be

2. If I　　　 you, I　　　 the job.

A. am; will take　　　　 B. was; would take　 C. were; would take D. are; will take

1. I　　　　 a big house for my family if I　　　 a lot of money.

A. would buy; have　　 B. would buy; had　　 C. will buy; had　　 D. will buy; will have

5. They will publish these story-books next month.(同上)

　These story-books _____ _____ _____ next month.

4. I have learned English for about two years.(同上)

English ______ ______ ______ for about two years.

3. A lot of people in China can speak English now.(同上)

English ______ ____ ______ by a lot of people in China now.

2. Li Lei gave Tom a new pen last week. (同上)

A new pen _____ _______ _____ Tom last week.

1. They often clean their classroom after school.(改为被动语态)

Their classroom _____ often ______ by them after school.

8. When was invented the bicycle? ____________________