.Your son has kept _________ for two hours.You’d better ask him to have a rest.

Putting on a happy face not only helps us make friends but alsomakes us feel better —

The number of smokers in China ________ decreased in recent years.

Most people who enjoy travelling believe that travel ______ not only our bodies but also our minds.

you _____ agame of table tennis, Cathy —I’dlove to, but I still have piles of homework to do