52单词网 > 高中英语 > 高中英语题库 > There is no doubt smoking can seriously damage our health.A.thatB.whetherC.whyD.

There is no doubt smoking can seriously damage our health.A.thatB.whetherC.whyD.

来源:网络 时间:
There is no doubt smoking can seriously damage our health.A.thatB.whetherC.whyD.

There is no doubt ______ smoking can seriously damage our health.

A.thatB.whetherC.whyD.which

试题答案

A

解析