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

单项选择题The police still haven' t found her, but they' re doing all they（）

A. may
B. can
C. must
D. will

单项选择题It was the doctor's carelessness that ______ the serious accident.

单项选择题How much ______ she looked without her glasses!

单项选择题The air of countryside is cleaner than ______ of city, but I don't like to live ______ far.

单项选择题They used to quarrel a lot, but now they are completely ______ with each other.

单项选择题— Is ______ here — No, Bob is ill at home.

单项选择题—You wants ______ sandwich —Yes, I usually eat a lot when I'm hungry.

单项选择题I'm not quite sure how to get there. I'd better______a map.

单项选择题—We've spent too much money recently. —Well, it isn't surprising. Our friends and relatives（）around all the time.

A. are coming
B. had come
C. were coming
D. have been coming

单项选择题When I talked with my grandma on the phone, she sounded weak, but by the time we ______ up, her voice had been full of life.