Last weekend,Andy for a drive with his father around the lake．

It is the prevention of disease_____ itssuccessful treatment that has led to the rapid increase of the world’spopulation.

We may meet all kinds of difficulties in the future, but we should be confident enough to any challenge.

I asked the doctor for some _________.

The relation between the actor and his girlfriend has been worsening.—I know. It has got to they have to get separated.