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

　　 These story-books _____ _____ _____ next month.

第三单元参考练习

　　 Unit 3 Teenagers should be allowed to choose their own clothes.

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? ____________________

7. Somebody broke into our house but nothing stolen. _______________

6. How many languages are speaking in Switzerland? _______________

5. Where are you born? ____________________

4. A garage is a place where cars repair. ____________________