—_______ do you go to see your grandparents?—Once a week.
----There can be no life on the earth without water. ----That’s right. Water _____ everywhere.
I hate people ___________ talk much but do little.
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 ________ .