________ fun it is _______ tricks on those children!
A. What； to playing B. What； to play
C. How； playing D. How； to play
I’m sorry. I ____ the exercise book in my home. I can’t hand it in at present.
A. have left B. have forgotten C. left D. forgot
I can’t buy this coat, because it is _______ expensive.
A. a bit of B. a few C. a little of D. a bit
Since several years ago, many supermarkets in China have _______ free plastic (塑料的) bags.
A. to stop providing B. to stop to offer
C. stopped to provide D. stopped offering
—A number of tourists _______ Yangzhou many time because it is such a beautiful city.
A. have been to B. has been to
C. has gone to D have gone to
My father _______ working on the farm, but he is a driver now.
A. is used to B. was used to
C. used to D. gets used to
