It was not until that to prepare his lessons.

来源：百度知道编辑：UC知道时间：2024/05/18 11:03:57

It was not until __ that __ to prepare his lessons.
a.did his father come in ;the boy began
b.his fanther came in;the boy began
c.did his father come in ;did the boy begin
d.his father came in ;did the boy begin
答案是b
为什么？
请详细说明

首先这是一个It be that引导的强调句，然后又涉及到not until句型及其倒装。正确语序是:The boy didn't begin to prepare his lessons until his father came in.not until 倒装句中，主句倒装，从句不变。

这是not until的强调句。只有not until放句首时，才倒装。

I was not enjoy it Experts said it was not dangerous __________ it was approached It was not long....before的用法 It was hard physically, but not mentally It was not until the Qin Dynasty I COULD NOT BELIEVE IT WAS OVER it was not until yeasterday to have we knew it. It was not until liberation that ____to his hometown. it was not until 1920 ( ) regular radio broadcast began. It was stupid _ me not to take your advice