--- Mr Wu, could you tell me ________?--- You’d better do more speaking.
—The dictionary is a useful _______ for understanding new words.—I think so.A. secret B. tool C. way
My mother asked me _______.A.what I was doing B. what are you doingC.what was I doing
Linda hasn’t finished her homework ______.A. already B. just C. yet
The population now is much ______ than that 20 years ago.A. large B. larger C. largest
Everyone ______ to pick up litter on the ground.A. is supposedB. supposesC. are supposed