17、I hear someone _________ at the door．Please go and have a look．

A．knock              B．knocking               C．knocks             D．to knock

16、--There is somebody at the door．Who _________ it be? Is it the postman?

--No，it _________ be him．It's just seven o'clock． It's too early．

A．might；can't          B．will；won't           C．may；mustn't         D．must；mar not

15、Most of us will spend most time _________ lessons．

A．study              B．to study             C．studying              D．studies

14、How many English words _________ you _________ in the last two years?

A．do，learn               B．did，learn               C．have，learn             D．have，learned

13、--What's that in the tree，can you see?

--There must _________ some birds _________ in it．

A．are；sitting            B．be；sit             C．have；sitting           D．be；sitting

12、If my father _________ here now，he _________ tell me what to do．

A．were，would           B．were；still          C．had，will             D．is，will

11、Bill said they would do _________ work today．

A．a two-hour           B．two hours              C．a two-hours          D．two hours’

10、My teacher didn't give up _________ me．

A．to try to help           B．trying to help          C．trying help            D．to try help

9、--“Oh，you have made the game mistake again!”

--“Oh，_________．How _________ I was!”

A．so have I；careless                                    B．so I have；careful

C．so have I；careful                              D．so I have：careless

8、I don't think children should be allowed _________．

A．drive              B．to drive             C．drives               D．driving