You'd better get all the work _________ before you leave.

At midnight the enemy attacked _________.

The new safety problem of contaminated（受污染的）milk is much more widespread，           at least 22 dairy companies and their milk products that have appeared nationwide.

This method，     in areas near Shanghai，    in a marked rise in total production．

all her spare time to her study during the three years, Tedy finally took the first place in her school in the College Entrance Examination and received the admission notice from her dream university.

A _______ broke the newly-planted tree, ______ the planter feel very angry and sad.

Suddenly I heard a terrible noise ahead. I looked forward _______ what was happening, but found nothing.

Your attention, please! ________ today is Professor Yu Dan from Beijing Normal University. 

Do you feel like _____ out or would you rather that the two of us _____ dinner at home?

Do you have any difficulty ___ these flowers? I’d like to help you if you need.