Is there anyone in your class ________ family is in the country?

_______ one and a half months enough for the project to be finished?　　—I am afraid not. The professor is ill and only after he recovers ________ go on with it.

I’m very glad to know that my boss has generously agreed to ________ my debt in return for certainservices. [ ]

Are ___________ your parents

The salesman showed her several MP3s and she chose ________ one as she didn’t want to spend too much money on it.