Tom and I see each other ________， but not as often as we used to.

I can hardly imagine the difficulty she had ______ enough evidence to prove that she was innocent.

They weighed the advantages of the operation ______ all the possible risks involved over and over again.

Some people have no idea that by helping a criminal they could ________with a prison sentence.

Don't ______ to spring-clean the whole house just because my mother is coming---there's no need to do that.

--- Can I help you, sir?---I’m afraid you can’t. I have my students’ papers________.

Nearly all educators believe that a challenging situation can often _______ the best qualities of a person.

Mr Obama, who appeared to take the lead in the race in most battleground states, seemed to______ an air of caution throughout the first Presidential debate

—— I think a design which ________ all the ages and social groups is not easy to make.—— I can’t agree with you more.

Some high officers were punished by law only because they were _______ what didn’t belong to them.

Scientific researches show that to _________ a language one had better often get exposed to it.

At the meeting an important problem _______ and it attracted everyone’s attention.

When we visited Zhou Zhuang again ten years later, we found it changed so much that we could hardly ________ it.

He ________ ill last week and stayed in bed _______ he was well.

There has been__________ accidents on this part of road.

I don’t have time for a drink now, but I’ll ________ you later.

He ________ from other people in that he always looked farther ahead in his work．

I don’t think that your speech ____to the crowd, for they appeared quite puzzled．

If he goes on driving like that, sooner or later, he will ____ an accident. 

The governments are _____ to improve the employment and medical situation of the citizens.