His wife is ________ finding fault with him, which makes him very angry.

His car ran over another in the highway! Too horrible! _____ he is safe now—that's the main thing．

A society cannot be successful if it throws tradition away, but it cannot be successful ____if we do something to stop progress.

It seems that living green is               easy and affordable. A small step makes a big difference.

His parents,       , didn’t look after him very well—the elbows of his jacket and his boots were badly worn out.