The most important _____ of his speech at the G20 summit was that we should all unite to fight against the finanical.    

A. element            B. spot                  C. view                 D. point

We hope to go to the beach tomorrow, but we won’t go ____ it’s raining.

A、if         B、when C、though       D、because

——Do you mind if I smoke?

        ——____

A、Why not? B、Yes, help yourself  

C、Go ahead D、Yes, but you’d better not

—Would you please join us in this computer game?

—Thank you, but I’d rather ________.

A. not to B. not join   C. not do        D. not

In order to learn the _______ of the family business, Bill took a job as messenger boy in one of the offices.

A. ins and outs       B. dos and don’ts C. heads and tails      D.p’s and q’s

Many people agree that ______ knowledge of English is a must in _______ international trade today.

A. the, an       B. a, 不填 C. the, the   D. 不填, the

—Mum, it is nice weather. I want to skate this afternoon.

—Don’t you think the ice on the lake is too thin to ________ your weight.

A. stand  B. catch  C. bear D. take

I’m afraid none of them can ________ the machine that has been imported from abroad. Which of the following is wrong?

A. work  B. run  C. turn      D. operate

Mr Ascot, headmaster of the school, refused to accept ______of the three suggestions made by the Students’ Union.

A. either  B. neither  C. any D. none

“Where is Mother.” “She is in the kitchen. She _______ the housework all morning.”

A. is doing     B. was doing C. has done      D. has been doing