34. The space is left to let the rail expand when it gets hot, ______?A.isn’t itB.is itC.doesn’t itD

题目简介

34. The space is left to let the rail expand when it gets hot, ______?A.isn’t itB.is itC.doesn’t itD

题目详情


34. The space is left to let the rail expand when it gets hot, ______?
A.isn’t itB.is itC.doesn’t itD.does it
题型:单选题难度:偏易来源:不详

答案

A

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