All passengers ___ to show their tickets next time.A.requireB.will requireC.are requiredD.are to req

题目简介

All passengers ___ to show their tickets next time.A.requireB.will requireC.are requiredD.are to req

题目详情

All passengers ___ to show their tickets next time.
A.requireB.will requireC.are requiredD.are to require
题型:单选题难度:偏易来源:不详

答案

C
are required to do(被要求)是被动语态,主动语态是require sb. to do.

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