—How often do I need to feed the dog?—It _______

试题详情及答案解析

—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 be given	D．must be gave

答案：C

试题分析：句意：—我需要多久喂一次狗？—它每天必须喂食物，否则它会饿的。根据句意此题应用被动语态，其基本结构是be+动词的过去分词，所以此题选C。
考点：考查被动语态的用法