20．-You haven’t lost the ticket，have you?

　-________. I know it’s not easy to get another one at the moment．

　　　 A．I hope not 　　　　　 B．Yes. I have 　　　 C． Yes. I’m afraid so.D．I hope so

19．The two boys had so much in common as if they ______ brought up in the same family.

　　 A．should be　　　　　　 B．would be　　　　　 C．have been　　　　　　　 D．had been

18．-The woman biologist stayed in Africa studying wild animals for 13 years before she returned.

　 　-Oh, dear! She ________ a lot of difficulties.

　　　 A．may go through　　　　　　　　　　　　　　　 　　　　　　　　　　　　　　　　　 B．might go through　　　

　　　 C．must have gone through　　　　　　 　 　　 D．ought to have gone through

17．It rained for two weeks, completely _______ our holiday.

　　　 A．ruined　　　　　　　　 B．ruin　　　　　　　　　 C．to ruin　　　　　　　　　 D．ruining

16．_______ is obviously right is to give all children equal opportunities to develop their special gift.

　 　　 A．Which　　　　　　　　 B．What　　　　　　　　 C．That　　　　　　　　　　 D．It

15．We’d better set off right now, or it will be dark 　　　　we know it.

　　　 A．before　 　　　　 　　 B．after　　 　　　　 　 C．when　 　　　 　 　　　 D．until

14．It was in the garden of his old house _______ he grew up that he dug up a pot of gold.

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

13．To ______ good relationships with your teachers and classmates, you should learn to be on good terms with them.

　　　 A．bring up　　　　　　　 B．add up　　　　　　　 C．keep up　　　 　　　　 D．take up

12．-I think the company may not offer you a good pay.

-______, I won’t take the job.

　 　 A．That is to say　　　 B．What is more　　 C．In other words　　　 D．In that case

11．You can’t imagine what great trouble they have _______ the problem being discussed.

　 　　 A．to solve 　　　　　　 B．solve　　　　 　　　 C．solved　　　　　　　　　 D．solving