Question

【题目】—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 be given D．must be gave

Answer 1

【答案】C

【解析】

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。