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I don't think she could have done such a stupid thing yesterday, _____?

A. do I      B. could she        C. did she    D. has she

 He _____in London for many years, but he has never regretted his final decision to move back to China. A. lived       B. was living     C. have lived      D. had lived

What British singer-songwriter Adele worried was ___________ the audience would accept her remained to be seen.

 A. how that    B. which if       C. that whether     D. what that 

There being no witness on the spot, the police were delayed by the ________of information about the crime. 

A. analysis         B. disappearance        C. absence      D. consideration

The confrontation(對(duì)峙) off the coast of Huangyan Island can’t change the fact that it is an island ____to China.

 A. belongs     B. belonging      C. belonged     D. being belonged

 Yahoo recently announced to ________ 2,000 employees, about 14% of the company’s workforce, aiming to save $375 million annually.

 A. take on     B. cut off      C. bring down       D. lay off

There was nobody in the room. Lying on the desk ____ a pair of glasses as well as a letter addressed to his wife.

 A. have    B. were      C. was    D. had

All the task ____ ahead of time, they decided to go on holiday for a week.

A. had been finished    B. were finished    C. having been finished D. been finished

Doctors should take special care when treating children because their breathing rate is different from _____ of adults.

A. one  B. those        C. that     D. some

——The research on the new bird flu virus vaccine is challenging and demanding. Who do you think can do the job?

   ——____ Tom have a try?

 A. Shall        B.Can       C.Will         D.Need