.It is uncertain whether the medicine will work on the this cold,________?A, is it B. isn't it

题目简介

.It is uncertain whether the medicine will work on the this cold,________?A, is it B. isn't it

题目详情


.It is uncertain whether the medicine will work on the this cold,________?
A, is it    B. isn't it C, will it D. won't it
题型:单选题难度:偏易来源:不详

答案

B

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