二、单项选择(15小题，每小题1分，共15分)    从A、B、C、D四个选项中选出一个最佳答案，并将其标号填入题前括号内。

(    )21. Xi’an is          ancient city.  It has          long history.

A.a; a      B. an, a     C. The; an       D. / ; a

(    )22. - Look at Victor’s  new bike, is it the same          yours?

-No. Mine is different         his.

A. as; from     B. to, from    C. with; with    D. As; with

(    )23.The water is not         enough. Add some more sugar, please.

A. clean       B. sweet     C. salty       D. fresh

(    )24. Liu Chang thinks         with friends in English is very helpful. [

A.talks        B. talk    C. talked      D. talking .

(    )25. - Avengers: Age of Ultron(《复仇者联盟2》)is very wonderful, isn’t it?          - Yes, but I don’t think          like it.

A. somebody    B. anybody    C. everybody    D. nobody

(    )26. There will be an important test tomorrow morning.  You          be late.

A. may not       B. Needn’t         C: mustn't         D. couldn’t

(    )27.In the past ten years.there           great changes in my hometown.

A: were           B. have been       C. are      D. are going to be

(    )28.- It seems that Dave likes playing basketball very much.

- Yes.  He plays almost every day          it rains heavily.

A. whether   B.'when     C. unless     D. as

(    )29.It is raining outside. You'd better drive           possible.

A. more careful   B. more carefully   C. as careful as   D. as carefully as

(    )30.1f the teacher           us any homework tomorrow, we will go bike riding.        A. gives       B. doesn’t give .   C. will give       D. won’t give

(    )31. When my father was         , he became a doctor in a big hospital.

A. at twenties .     B. in his twenties

C. at twenty       D. in the twentieth  [

(    )32.- Has your father stopped smoking?

- Not yet. It's quite hard for him to

A. break off it     B. give up it     C. break it off .    D. give it up .

(    )33.- The cinema is quite near          walk over there?

-All right.

A. Why don’t we  B. How about  C. Would you like D. What for

(    )34. There are so many kinds of mobile phones in the shop: We can't decide

A. what to buy . B. to buy what    C. which to buy   D. ta buy which

(    )35. The doorbell is ringing.  Would you please go to see         ?

A, who it is              B. who is it:.

C. where does he go        D. where he goes