— I’m not good at singing, you know.

    — _____. It’s just for fun.

   A.All right            B. No problem    C. Come on           D. Cheer up

 — Shall we attend the concert this evening?

     — Great idea, _____ we can do some shopping first.

   A. if                 B. before              C. since                D. when

 Under no circumstances _____ that I would meet so many problems when I decided to take the job.

A. do I expected         B. have I expected     C. I expected        D. did I expect

 They wouldn’t agree to sell the house to us at the same price_____ they had promised, _____ was rather disappointing.

A. which ; as            B. as ; that           C. as ; which            D. that ; that

 —Sorry，Mum, I lost my key to the bicycle again．

    —Oh! How_____ you be so careless! You have to learn to look after your belongings．

       A．can               B．may              C．will                 D．dare

 Low-carbon lifestyle is of great benefit to improve the world environment . _____can be enjoyed from it until you have a deep understanding of it，however．

A．Something         B．Nothing          C．Few              D．Much

 — You didn’t tell me the truth about this matter, Barbara.

   — Are you _____ me of lying?

   A．charging          B．reminding        C．catching         D．accusing

 A new study shows anger may help people reduce the negative impacts _____ stress and help you become healthier.

A. in                    B. of                   C. on               D. at

 Around 15,000 officials gathered in Copenhagen, trying to map out an effective strategy _____ the battle against climate change.

A. to win                B. will win             C. winning          D. won

 —Did you hear Tom was scolded for his spelling mistakes in his English composition?

—Yes, but a more careful person _____ so many mistakes.

A. wouldn’t make                            B. needn’t have made  

C. shouldn’t make                           D. wouldn’t have made