Don’t be ____by products promising to make you lose weight quickly.

A.  taken off  B. taken out  C. taken away  D. taken in

I’m turning the shop_____to my son when I retire.

A. away          B. up           C. over           D. off

The country has already sent up three unmanned spacecraft, the most recent _____ at the end of last March.

A．has been launched    B．having been launched

C．being launched       D．to be launched

–English is becoming so important.

–It’s true. Many university classes are taught in English _____ the native language is not English.

       A.  as if                                                  B.  what if

       C.  as long as                                           D.  even though

We are interested in the weather because it _____ us so directly ------ what we wear, what we do, and even how we feel.

     A. benefits         B. guides         C. affects         D. effects

  ___________ that the government can lead them out of the financial crisis, people are optimistic about the future of the country.

   A. Convincing              B. Convinced                      C. To convince           D. Having convinced

These wild flowers are so special that I would do ____I can to save them.

A.     whatever  B. that  C. which  D. whichever

When was _____ that the general manager left for Japan?

A. he         B. it        C. that        D. since    

7.Although the causes of cancer ____， we do not yet have any practical way to prevent it.  

　　 A. are being uncovered B. have been uncovering

　　 C. are uncovering D. have uncovered

1.         By nine o'clock, all the Olympic torch bearers had reached the top of Mount Qomolangma, ___________ appeared a rare rainbow soon.

A. of which    B. on which   C. from which  D. above which