21、He gave my sister________useful book yesterday.

A. an            B. a          C. X

20、I will meet my best friend________the morning of May 1st.

A. in             B. on              C. at

19、—Oh, there's someone in the room.

—________must be my brother.

A. He           B. This           C. It

18、The story is hard to understand ________there are no new words in it.

A. but           B. so            C. though

17、—What do you think of her spoken English? —Oh, no one speaks________.

A. better         B. well           C. best

16、Could you tell me________?

A. When will Mary come back

B. When Mary comes back

C. When Mary will come back

15、—Must I finish the work today?

—No, you_______.  You________ finish it tomorrow.

A. mustn't; must      B. needn't; may          C. can't; may

14、—Linda, pass my glasses to me, please. I can ______ read the words in the newspaper.

—With pleasure.

A. hardly           B. nearly         C. clearly

13、—Oh, your skirt looks beautiful!

A. Don't say that     B. Thank you            C. I don't think so

12、—Will you come on Monday or Tuesday?

—I'm afraid________ day is possible. I'll be busy next week.

A. either            B. neither            C. both