17..In the United States, bus travel doesn't cost much as train travel, ?18.A.don't they B

题目简介

17..In the United States, bus travel doesn't cost much as train travel, ?18.A.don't they B

题目详情


17..In the United States, bus travel doesn't cost much as train travel,   ?
18.
A.don't they  B.does itC.do they   D.doesn't it
题型:单选题难度:偏易来源:不详

答案

B

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