The professor’s research finally proved to be ______, though he had spent a lot of money on it.

A. priceless            B. valuable            C. worthless           D. worthwhile

Will you see to ______ that my birds are well looked after while I am away?  

A. them                 B. yourself                   C. it                             D. me

 “She is no better at her lessons than you.” means _________

A．She studies better than you.           B．You study better than her.

C．Neither you nor she studies well.       D．Either you or she studies well.

The committee is discussing the problem right now．It will _____ have been solved by the end of next week．

     A．eagerly         B．hopefully      C．immediately         D．gradually

VI.短文改错（共10小题；每小题1分，满分10分）

  When I talked with the man, I found that from his childhood he develops the

habit of carrying the book in his pocket all the time. He was used to read every                                                  

minute when he had anything else to do. He found a book especial useful during the                                                   

periods of waiting: waiting doctors, meals ,buses and so on.. That was why he found

himself fifteen minute a day for reading. That was how she read twenty books a year-----one thousand of books all his lifetime.

 ___________ that Maric was able to set up new branches elsewhere.

 A. So successful her business was

 B. So successful was her business

 C. So her business was successful

 D. So was her successful business

 Don’t believe what he said . His story is _____ nothing.

A. based on      B. base on        C. base at         D. based about

These years China_______a boom in scientific and technological development.

A. enjoyed                B. has been enjoying           C. had enjoyed                   D. enjoys

My old father began to study computer science at the age of sixty in order that he might ___ times. 

A. come up with　     B. keep up with    C. end up with　           D. put up with

A British official has said Britain risks failing to benefit from the economic revolution in China __________British students are persuaded to study in China.

   A. if               B. unless            C. even if           D. now that