It was at midnight __ the water pipes in some buildings cracked and burst.用when还是that,为什么!
问题描述：
It was at midnight __ the water pipes in some buildings cracked and burst.用when还是that,为什么!
答
that
这是个强调句,所以用 It's...that 句型
不明白的再问哟,请及时采纳,多谢!