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

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求助高手:英语单选题分析1、NotuntilMarystartedtowork__toknowhowimportantagoodeducationwas.A.didshebeginB.shebegan

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
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

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
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”.