20．--This experiment is of particular importance to a11 of us．

　 －I see。We will carry on with it　　　　 we can get enough money．

　 　A．unless　　　 　　　 B．though　　　　 　　　　　 C．whether　　 　 D．until

19．一I’m not the man　　　　　　 the phone．She asked for Jimmy．

　　 一I’m sorry 1 was mistaken．

　 　A．wanted on　　　 　 B．calling over　　　 　　　　 C．called on　　 　 D．rung up on

18．Many experts hold the view　　　　　　　 teacher development is．　　　　　 the key to better education lies．

　 　A．Which；where　　　　　　　 　　 B．that；where

　 　C．which ；in which　　　　　 　　 D．that：in which

17．The policeman　　　　 the facts again and again，but couldn’t piece them together

A．got through　　 　　 B．went over　　　 　　 C．picked up　　　 　　 D．turned over

16．－I guess you might have missed your train to Shanghai yesterday．

一Well，I almost　　　　　 。

　A．might　　　　　 　　 B．had　　　　　 　　　 C．have　　　　　　 　 D．did

15．Dad is used to smoking and drinking．There’s no　　　　　 that I’m able to talk him into getting rid of that old habit

　 　A．need　　　　　 　　 B．problem　　　　　 C．chance　　　　 　　　 D．use

14．It is said that the price of that beach house，which you were looking forward to buying，

　　 has fallen　　　　　　 a further 500 yuan a square meter。

　 A．by　　　　　 　　　　 B．at 　　　　　　　　 C．with，　　　　 　　　 D．for

13．-Any suggestions?

一You’d better　　　　　　 the last sentence as it is rather misleading．

A．put out　　　　 　　 B．point out　　　 　　 C．leave out　　　 　　　 D．pick out