Question

求助高手：英语单选题分析

1、Not until Mary started to work__to know how important a good education was.
A.did she begin B.she began C.had she begun D.she had begun＿＿
2、though __not to read in poor light time and time again ,the boy still does it.
A.warming B.warned C .being warned D.having warned

Answer 1

第一题：正确答案为A。

这是一道倒装句练习题。“否定词至于句首全句用倒转”

第二题：正确答案为B.

本句主语为the boy，男孩“被警告，”所以用过去分词“warned”。

Answer 2

1C 2D
not until 是在...之前
not until:可放句首，但主句要用倒装．

Answer 3

DA猜得，不可信以为真