24、What do you imagine ______to Johnson ?.

A. happening         B. having happened         C. has happened         D. to have happened

22、----Haven't seen you for ages! Do you still work in Xi'an?

----________. It's four years since I worked there.

A. No, I don't.       B. No, I haven't.        C. Yes, I do.        D. Yes, I have

21、In the evening there was a barbecue, with the whole village ________ the fun.

A. joined          B. joined in           C. joining           D. joining in

20、_____ only 20 minutes to go before the train left, I felt uneasy in the taxi to the railway station.

A. For           B. With          C. As            D. Because

19、----What's the matter with you, Lucy?

----After the long walk, my legs ___________ and I couldn't go any farther.

A. gave off             B. gave in           C. gave up             D. gave out

18、—Is Bob good at science?

—No, he knows little physics ______ chemistry.

A. instead of             B. no more than             C. as well as        D. and still less of

17、It might be all right to tell a friend you loved the shirt you got as a gift ______ you know you will never wear it.

A. even though          B. unless            C. in case          D. or else

16、Charles Babbage is generally considered ___________ the first computer.

A. to invent          B. inventing         C. to have invented           D. having invented

15、—Go for a picnic this weekend, OK?

—_______ .I love getting close to nature.

A. I couldn’t agree more                         B. I’m afraid not

C. I believe not                           D. I don’t think so