It's no longer a question now _____ man can land on the moon

It's no longer a question now _____ man can land on the moon.
A.when
B.that
C.whether
D.how
C为什么不行.

呼呼-变 1年前已收到1个回答举报

共回答了16个问题采纳率：87.5% 举报

因为主句有 no longer ,即“已不再是个问题”,可见不带有任何不确定的意思,此时一般用that.
比较：
It is a question whther he will come here tomorrow.
此句“他明天来与不来”带有不确定性,故用whether
请在客户端右上角评价点“满意”即可,

1年前

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