However hard he tries the recorder . A. didn’t workB. won’t workC. isn’t workingD. hasn’t

问题补充：

However hard he tries，the recorder .

A. didn’t work

B. won’t work

C. isn’t working

D. hasn’t worked

答案：

A. didn’t work

(答案→)B. won’t work

C. isn’t working

D. hasn’t worked

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