If we had become aware of danger earlier, we _____ to stay in that temporary shelter.

Grace doesn’t want to move to New York because she thinks if she       there, she wouldn’t be able to see her parents very often.

It is important that we        wild animals.

— Hi, Tom．Any idea where Mary is? ．一 She　______in the reading room．I saw her there just now．

John agreed to the suggestion that his students _____ two weeks to prepare for the exam.