28.　 The snowdrops(雪莲) are just beginning to ______.

A. come up　　 B. become up　　 C. come out　　 D. become out

27.　 –Will you go to Peter’s birthday party?

--No, ______ invited to, I can’t go to it, I’ll be too busy then.

A. if　　　 B. unless　　　 C. even though　　 D. when

26.　 She will tell us why she feels so strongly that each of us has a role ______ in making the earth a better place to live.

A. to have played　　 B. to play　　 C. to be played　　 D. to be playing

25.　 He is a man easy ______.

A. to communicate　　　　　　　 B. to be communicated　

C. to be communicated with　　　 D. to communicate with

24.　 ______catch the first bus, he got up very early.

A. So that to　　 B. So as to　　 C. In order to　　 D. In order that

23.　 Many people are still in ______ habit of writing silly things in ______ public places.

A. the; the　　 B. /;　 /　　　 C. the; /　　　 D. /　 the

22.　 ______ under water, the steel block will be found lighter.

A. When you place　 B. When placed　 C. When to place　 D. When placing

21.　 They are going to make ______ to have meeting on Tuesday afternoon.

A. a rule　　 B. it rule　　 C. it a rule　　 D. that a rule

20.　 I had no trouble ______ your house last night.

A. find　　 B. to find　　 C. finding　　 D. to finding

19.　 The ______ you offered for this travel are reasonable.

A. advice　　 B. suggestion　　 C. advise　　 D. tips