I could stay for one or two days, but _____ staying for a week, it’s out of the question.

She his number in the phone book to make sure that she had got it right.[ ]

It’s difficult to be_____when we’re stuck in a traffic jam, but we have to be.

f the creatures in the movie “Avatar” are not real, but much of ______ happens is still attractive.

I will certainly be surprised if he ______to tell them what he knows.