It is our responsibility to ________ that the country's health care publications are beneficial to the people.
--I went to visit the photo exhibition yesterday.—Oh, did you ?____.
--He’s going to swim this afternoon. ---___.
Don’t have your children __for hours doing their homework in __ dark a room.
Peter was so tired that he went to bed early , ___.
“Would you like a cup of coffee?” “____”