24.　 What makes you ___________ I am an American ?

A. think　 　　　　B. to think　　　　　 C. thinking　　　　　 D. thought

23.　 When class began, we stopped __________ to the teacher carefully .

A. listening　　　　　 B. listen　　　　　　 C. listen　　　　　　 D. to listen

22.　 We will go to the China Folk Villages ______________ next week .

A. sometime　　　 B. sometimes　　　　 C. some time 　　　　　D. some times

21.　 Would you like ___________ my birthday party ?

A. joining　　 B. to take part in　　 C. to join　　　　 D. taking part in　

20.　 We have ___________ learned 2,000 English words .

A. too far　　　 B. quite far　　　 C. so far 　　　　D. by far

19.　 We have built a Great Green Wall _________ the northern part of China .

A. crosses　　 B. crossed　　　 C. is crossing　　 D. across

18.　 What _________ would you like ?

A. else　　　 B. other　　　 C. the other　　　 D. others

17.　 - Which of the following can you often find on a medicine bottle ?

-　　 I know , sir . It’s ______________ .

A. BUSINESS HOURS　 B. DANGER　　 C. ENTRANCE　　 D. INSTRUCTIONS 　

16.　 We can’t decide ____________ to do it .

A. what　　　 B. where　　 　C. how 　　　D. which　

15.　 We shall go back home before it _________ to rain .

A. is going　　 B. begins　　 C. will begin　　 D. began