—HowoftendoIneedtofeedthedog?—It
问题详情:
—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 点拨:本题用语法判定法解题。主语是it, 指的是the dog,和动词give 是动宾关系,要使用被动语态,情态动词must 的被动语态结构是:must +be +动词的过去分词,故选D。
知识点:动词语态
题型:选择题