We ______our dinner when a policeman came to the door.

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We ______our dinner when a policeman came to the door.

A. just had

B. have just had

C. just have had

D. had just had

参考答案:

D11.答案为D 当警察到门口的时候我们刚吃完饭。根据主句动作比从句动作早发生,因此时态比从句要早,是过去的过去,所以选过去完成式。