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A.It's exciting.B.It's boring.C.It's disappointing.

A. andB. butC. soD. or

A.more carefullyB.the most carefullyC.less carefullyD.the least carefully

A. clean B. cleaned

C. have cleaned D. am cleaning

—________？Mary is interested.

A. Why bother B. Why not

C. So what D. What for

--I think it is colorful, ______ I am always busy.

A. ifB. though　C. whileD. until

--I’m not sure. I ______ go to the countryside to see my grandmother.

A. can　B. must　C. may　D. need

—No, it ________ be him. I saw him off at the airport half an hour ago.

A. can’t; can’tB. must; can’t

C. must; mustn’tD. may; mustn’t

A. in favor of B. in honour of

C. in face of D. in need of

A.HoweverB.Anyway

C.ThereforeD.Though