You ______ Donna to tell her the news yesterday. I have told her on the phone.

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问题 You ______ Donna to tell her the news yesterday. I have told her on the phone.

选项 A、needn’t write
B、mustn’t write
C、needn’t have written
D、mustn’t have written

答案C

解析 这里是虚拟语气。昨天不必要做的事情,但是做了。凡是讲过去的而又是与事实相反的事情,就用need (not) have done。
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