A. Go aheadB. Come onC. My pleasureD. No problem—May I ……

单项选择题I'm tired out. I() all afternoon and I don't seem to have finished anything.

A. shopped
B. have shopped
C. had shopped
D. have been shopping

单项选择题Tim is in good shape physically () he doesn't get much exercise.

A. if
B. even though
C. unless
D. as long as

单项选择题—Do you regret paying ten dollars for that book —No, I would gladly have paid().

A. as twice many
B. twice as many
C. twice as much
D. as twice much

单项选择题I walked slowly through the market, where people () all kinds of fruits and vegetables: I studied the prices carefully and bought what I needed.

A. sell
B. were selling
C. had sold
D. have sold

单项选择题Dina,() for months to find a job as a waitress, finally took a position at a local advertising agency.

A. struggling
B. struggled
C. having struggled
D. to struggle

单项选择题So far nobody has claimed the money () in the library.

A. discovered
B. to be discovered
C. discovering
D. having discovered

单项选择题The young lady () nothing but fashions on which she spends a lot.

A. cares for
B. applies for
C. sends for
D. runs for

单项选择题I left my pen on the desk and now it's gone; who () it

A. took
B. has taken
C. will take
D. had taken

单项选择题Elephants would () if men were allowed to shoot as many as they wished.

A. die down
B. die out
C. die away
D. die off

单项选择题I haven't seen Sara since she was a little girl, and she has changed beyond().

A. hearing
B. strength
C. recognition
D. measure