10.I won’t go ________ he comes back.

A. until　　　　　 B. while　　　　　　 C. when　　

9. When ______ the car ________?

A. did, invent　B. was, invented　　C. does, invent　

8. It’s used for _____ clearly in the dark.

A. seeing　　B. see　 　C. looking 　

7. They decided _______ at the end of this month.

A. to leave　　B. going back　 　C. not stat out

6. I don’t like this kind of potato chips because they are not _______.

A. crispy　 B. sweet　　C. soft

5. The police found the lost car _______.

A. with mistake　 　B. by accident　　C. by mistake

4. My mother told me that my homework must _______ on time.

A. finish　　B. be finish　 　C. be finished

3. Keys _______ used for ______ the doors.

A. is, opening　　B. is, opened　 　C. are, opening　

2. All the books will ______ to the children who live in the small village.

A. be sent　　B. sent　 　C. be send　

1. The bridge ____ by the farmers in 1982.

A. built　 　B. was built　 　C. build