It is uncertain ______ side effects these weight-loss drugs will bring about, al
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It is uncertain ______ side effects these weight-loss drugs will bring about, although hundreds of thousands of patients have taken it.A.that | B.whether | C.how | D.what |
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答案
D |
解析
这句话考查的是主语从句,it是形式主语,因为是uncertain,所以主语是不确定的事,side effects缺少修饰,填what。句意是:虽然几十万患者采取了这些减肥药但是不确定它会产生什么副作用。选D。 |
举一反三
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