It's no longer a question _____ man can go to the moon.
问题描述:
It's no longer a question _____ man can go to the moon.
答
that.that 引导同位语从句,用来说明的qestion具体内容.问题是什么?问题是从句所表示的内容.
For example:
There is no doubt that you will succeed in time.