当你想知道对方正在干什么,问:A. What’s he doing?B. What are you doing?C. What do you do?
He often _______ a No.22 bus to the Book Centre. A. takesB. takingC. take
Lucy _________ some books tomorrow. A. buysB. going to buyC. is going to buy
There isn't ________ in the house. A. anybodyB. somebodyC. everybody
Jack worked _______ a long time in the afternoon and he was tired. A. atB. inC. for
Do you have _____ homework than before? A. littleB. lessC. littler