20.when you visit the Great Wall, you must ______ the path.

A walk　 B climb up　 C keep to　 D run

19.why not_____ your mother to go with you ?

A ask　 B to ask　 C asked　 D asking

18.He walked_____ me and then turned back.

A through　 B past C across　 D over

17.Which sign can tell you not to turn left?

16. Can we go and have a drink now? 　--A drink? There are twenty more trees_____!

A. to plant　　 B. to be planting　　 C. to plant them　　 D. to be planted

15.– Let’s go to the Museum of Natural History, shall we?　 --___________.

A. All right　 B. Yes, we shall　　 C. That’s all right　 D. You’re welcome

14.I hear someone ________ at the door. Please go and see who _______ is.

A. knock; someone　　　 　　　B. knocking; she　

C. knocking; he　　　　　　　 D. knocking; it

13.If someone asks “ What rules do you have at home?”, you may answer _______.

A. I often watch TV.　 B. I’m not allowed to go out on school nights.

C. I don’t like to stay at home.　 D. It’s a good question.

12. ___ you like to have another try? A. Could B. Will C. Would D. Do