Milk bottles need cleaning thoroughly before they are used again ,they?A.don’tB.mustn’tC.needn’tD.ar

题目简介

Milk bottles need cleaning thoroughly before they are used again ,they?A.don’tB.mustn’tC.needn’tD.ar

题目详情

Milk bottles need cleaning thoroughly before they are used again ,   they?
A.don’tB.mustn’tC.needn’tD.aren’t
题型:单选题难度:偏易来源:不详

答案

A

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