题目内容

With the development of science and technology,there is no doubt_____Chinese

astronauts will land on the moon in the near future.

A.whether                                  B.that

C.what                                D.which

练习册系列答案
相关题目

违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com

精英家教网