Is it in the factory__ you visited last week__this kind of car is made﹖
Look! The ground is wet. It must have rained last night, ________?
—Did you tell her the bad news? —Yes, but I'd rather ________.
He is only too ready to help others, seldom, ________, refusing them when they turn to him.
A recent study has found that the number of smokers ________ sharply over the past five years.
How close parents are to their children ________ a strong influence on the development of the children's characters.