31: In North America, most students go to school by bus. The subway is also widely used in some cities. In small towns and cities, walking is still popular.The yellow school bus is a familiar sight all over North America. It is a very conve...

(单选题)25: They won't leave ______ you come back. A: until B: and C: about D: to ...

(单选题)19: I could not move my hands                 they were not mine. A: even though B: as if C: like D: so ...

(单选题)13: --What a beautiful dress you have on!--____________. A: Oh, thanks. I bought it yesterday. B: Sorry, it’s too cheap. C: You can have it D: See you later. ...

(单选题)7: We usually _____ hello to each other. A: tell B: talk C: speak D: say ...

(单选题)1: We found ________ necessary to protect the environment. A: it B: this C: that D: what ...

(单选题)15: He gives the impression of being happy, but in ______ he is very sad. A: real  B: true  C: reality D: truth ...

(单选题)9: The monitor said to Tom that two other students would be on duty _______ him. A: except    B: besides C: beyond  D: along ...

(单选题)17: 39. I like black coffee so much because the stronger it is, ______ . A: I like it better B: the more I like C: the better I like it D: I like it more ...

(单选题)5: 47. They are pleased to switch it off when they do not like the programme or change to the other ______. A: channel B: title C: volume D: version ...