ThedoctoradvisedVerastronglythatsh

发布时间:2020-07-25 22:03:13

The doctor advised Vera strongly that she should take a holiday, but _______ didn’t helpA.itB.sheC.whichD.he

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A解析it指代前文提到的事情,如果把but去掉则成了非限制性定语从句,用which。
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