I’m sorry that I can’t pass you any salt because there is_________ in the bottle.

If you want to work for our country in the future,_____ you should have strong body and rich knowledge.[ ]

How many times have you _________ to that place? — Twice.

Have you _________ chatted with your friends on the Internet?— No, ________.

Do you think if we will go to the movie tomorrow?—I think we’ll go if we ___________ too much homework.