lt was not __late afternoon that they began 为什么要用until

题目

lt was not __late afternoon that they began 为什么要用until

答案

这个是强调句型“it is/was 【】that.”
【】部分是被强调部分,夹在it‘s跟that之间
本题强调not until late afternoon
原句是：they did not begin.until late afternoon.用的是not...until搭配表示“直到.才.”
在强调not...until...的时候,必须把not until 放在一起
强调句是这样的,倒装句也是这样的