【題目】— How often do I need to feed the dog? — It ________ food every day, or it will be hungry.
A.must give
B.must be give
C.must gave
D.must be given

【答案】D
【解析】句意：—我需要多久喂一次狗？—必須每天給它食物，否則它會(huì)餓的。根據(jù)句意及題干分析此空應(yīng)用被動(dòng)語態(tài)，其基本結(jié)構(gòu)是be+動(dòng)詞的過去分詞，此題考查的是帶有情態(tài)動(dòng)詞的被動(dòng)語態(tài)，所以此題應(yīng)選D。

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