To our surprise, the stranger （）to be an old friend of my mother's.

单项选择题—I'm going on a trip to Hainan after the exam. — Really （）!

A. Have a nice time
B. Congratulations
C. OK
D. It's nice of you

单项选择题—Could you do me a favor and take the box up to the sixth floor.9 — （）.

A. With pleasure
B. My pleasure
C. No wonder
D. No comment

单项选择题Look at that little boy wandering about—perhaps he （）his mother.

A. will lose
B. is losing
C. had lost
D. has lost

单项选择题—How about your trip to Hainan — It couldn't have been （）. Sometimes I went swimming in the sea; sometimes I lay on the sand.

A. so well
B. as bad
C. better
D. worse

单项选择题—I thought you wouldn't mind. — Well, as a matter of fact, I don't, but you （）me first.

A. should ask
B. should have asked
C. must ask
D. must have asked