—— Is Jim at home by himself? —— No, there is another boy __________ with him.
Don’t ______ so often. It’s bad for your health.
________ sad news it is! We must try our best to help them out of trouble.
The sign “@” in zhonghua @sina.com means ________ .
The manager ____ nothing about the matter ____ he read his secretary’s report.
I phoned the dentist, he advised me ____ hot things.