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

A．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

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

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

24．There are _________ birds in the forests．

A．two millions           B．two millions of        C．million of               D．millions of

23．You'd better get your clothes _________，for they're so dirty．

A．washed                 B．washing                C．wash                      D．washes

22．He has no pens _________．

A．to write                 B．writing                  C．to write with           D．to write in

21．Can you learn English _________ chatting on the Internet?

A．in                         B．with                             C．by                         D．for

20．A．Yes，it is．                        B．I think so．                         C．No，it isn't．

19．A．After you finish your exam．                    B．Before you finish your exam．

C．Before you begin to do them．

18．A．I have to read stories in English．

B．I have to read stories in English and speak much English．

C．I have to speak English as much as possible．

17．A．No，I can't．                       B．I think so．                          C．Yes，I can．