There is _____ pollution in the world. Wemust stop it.

That car accident ______ all his life. After that he was limited to a wheelchair.

What _____ heavy rain it was!—Yes, but I love _____ air after it rains. It smells so fresh.

Tommy couldn’t stop thinking about the boy made him a fool in front of the whole class.

Don’t blame such a small boy any more Eventhe wisest___ make a mistake sometimes