Customs Officer: Well, please open your suitcases. Mr.Smith: OK.These items are for personal use. Customs Officer: _____? Mr.Smith: N0, I don, t think SI 've only bought some gifts for my friends.

A.Sure, my pleasure B.Don 't ask me

C.I don 't know D.Not my business

A.Take it easy B.Please feel natural

C.Make yourself at home D.Feel all right here

A.excuse me B.I 'm sorry C.Never D.I don’t

A. increased

B. is increased

C. has increased

D. are increased

A. should come

B. is coming

C. comes

D. will come

A. wasn‘t

B. is it

C. was it

D. isn’t it

A. he‘ll make great progress

B. the greater progress he’ll make

C. he‘ll make greater progress

D. the greater he’ll make progress

A. it must be raining

B. it must rain

C. it must have rained

D. it must have been rained

A. Have I had time

B. Had I time

C. Had I had time

D. would I have had

A. changed

B. changing

C. to be changed

D. to change