Written in a hurry,______. How can it be satisfactory

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

单项选择题I cried（）my voice, but still they could not hear me.

A. at top of
B. at the top of
C. on the top in
D. to the top of

单项选择题Every year a flood of farmers arrive in Shenzhen for money-making jobs they（）before leaving their hometowns.

A. promised
B. were promised
C. have promised
D. have been promised

单项选择题She didn't see me come and went on ______ her newspaper.

单项选择题In some remote places there are still very poor people who can't afford to live in ______ conditions.