[-B12] It was not until midnight _______ the reached the camp site.

问题描述:

[-B12] It was not until midnight _______ the reached the camp site.
A.that
B.when
C.while
D.as
翻译并分析

直到半夜他们才回到营地.
我猜你少打了个字母 the应打成they
这样就通顺了.that 后面是个从句.