Tell me how to operate the electronic computer, ______?

A. will you            B. shan’t you         C. do you       D. don’t you

 The experiment shows that proper amounts of exercise, if         regularly, can improve our health. 

A．being carried out    B．carrying out C．carried out          D．to carry out

Dr. Smith, together with his wife and daughters ,          visit Beijing this summer.             

A  is going to   B are going to    C was going to   D  were going to

 Heavy rainstorm broke out in South China,      68 lives and       62 still missing.

A．killing ,leaving B．killing ,left      C．killed, leaving  D．to kill , leave

Green products are becoming more and more popular because they are environmentally_______.

 A.friendly      B.various             C.common           D.changeable

Bob would have helped us yesterday, but he_______

A. was busy                B. is busy                  C. had been busy. D. will be busy

Unsatisfied ______with the payment ,he took the job just to get some work experience.

A. though was he        B. though he was  C. he was though        D. was he though

After he left college , he was employed in an international company and _____         there ever since .

A．worked    B．has worked      C．had worked     D．was working    

 _________ the right kind of training, these teenage soccer players may one day grow into the international stars.

 A. Giving     B. Having given     C. To give       D. Given

–Guess what, we’ve got our visas for a short-term visit to the UK this summer.       --How nice! You       a different culture then.

A. will be experiencing       B. have experienced      

C. have been experiencing     D. will have experienced