—HowoftendoIneedtofeedthedog?—It
問題詳情:
—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
【回答】
D 點撥:本題用語法判定法解題。主語是it, 指的是the dog,和動詞give 是動賓關係,要使用被動語態,情態動詞must 的被動語態結構是:must +be +動詞的過去分詞,故選D。
知識點:動詞語態
題型:選擇題