28．It _________ be Jack who broke the windows. It _________ be Tom who did it.

　A. mustn’t; must　　　　　　　　　　　　 B. needn’t; can

　C. can’t; must　　　　　　　　　　　 　　 D. may not; can

27. The little girl couldn't work the problem out．She wasn't ___________ clever．

A．that 　　　　 B．much　　 C．many 　 D．too

26．He demanded that he _________ the place at once.

　A. leave　　　　 B. leaves　　　 C. left　　 　　 D. will leave

25．On the ground _________, who was crying.

　A. a little boy lay　　　 　 　　　B. a little boy lies

　C. did the little boy lie　 　　 D. lay a little boy

24．He _________ a good example _________ everyone _________ getting up early.

　A. gives; for; at　 B. gave; to; with 　　C. sets; to; by　　 D. set; for; in

23．I can hardly imagine Peter _________ across the Atlantic Ocean in five days.

　A. sail　 　 B. to sail　　　　　 C. sailing 　　　　 D. to have sailed

22．_________ we know, Tom is sure to succeed in this competition.

A. So long as　　　 B. So far as　　 C. So that　　　 D. Now that

21．_________the examination will _________ easy.

　A. Hopeful; become　　　　　　　　　　　 　　 B. Hopefully; turn out

C. Be hoped; turn out to be　　　　　　　　 D. Hoping; turn