—Ted found a policeman passing by and handed the mobile phone over to him.—But he at the

问题补充：

—Ted found a policeman passing by and handed the mobile phone over to him.

—But he at the place until the owner returned.

A. must have waited

B. might have waited

C. would have waited

D. could have waited

答案：

A. must have waited

B. might have waited

C. would have waited

(答案→)D. could have waited

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