---Mom, what did the doctor say?

---He advised me to live _______ the air is fresh.

　　 A. in where 　　　　　　　 B. in which 　　　　　　　　　 C. the place where 　　　 D. where

 When under stress, even a most gentle person _______ be bad-tempered and get angry easily.

     A. shall                      B. should                        C. can                           D. ought

 Chinese government should ________ taking action at once to defend the Diaoyu Islands.

     A. set about               B. set off                        C. set out                      D. set in

 We are already far behind the schedule. ________ we take a taxi, we will still miss our flight.

     A. As long as              B. Even if                       C. As though                 D. Only if

---I’m so grateful for the help you offered when I was in trouble.

---_______. That’s what friends are for.

A. With pleasure. B. No problem. C. You are very kind. 　　 D. Don’t mention it.

According to media reports, the London stadium is ________ other Olympic stadiums in terms of steel used.

A. 75% lighter than B. as light as 75% C. as 75% light as 　　　　 D. 75% lighter as

 Climate change over the past two million years ________ human beings to adapt to the changing environment.

     A. was forcing           B. has forced                  C. is forcing                  D. would force

High-heeled shoes should be banned from the workplace ________ health and safety reasons, according to the trade union leaders.

　　 A. other than B. except for C. due to D. apart from

Any company which wants to succeed in the market must maintain its good _______.

　　 A. position B. regulation C. recognition D. reputation

 _______ (W) word came that three Chinese astronauts had been successfully sent into ______ space.

     A. The; a                   B. 不填；不填               C. A; 不填                    D. 不填；the