not until倒装Not until he failed the exam__that working hard is important.A> had he known B>did he know C>he knew D>he had known选哪个,为什么 working hard is ...现在时
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not until倒装Not until he failed the exam__that working hard is important.A> had he known B>did he know C>he knew D>he had known选哪个,为什么 working hard is ...现在时
not until倒装
Not until he failed the exam__that working hard is important.
A> had he known B>did he know C>he knew D>he had known
选哪个,为什么 working hard is ...现在时
not until倒装Not until he failed the exam__that working hard is important.A> had he known B>did he know C>he knew D>he had known选哪个,为什么 working hard is ...现在时
Not until he failed the exam__that working hard is important.
A> had he known B>did he know C>he knew D>he had known
选哪个,为什么 working hard is ...现在时
答案解析:
Not until 主语+谓语 +倒装结构(助动词提前)+主语+ 谓语 结构(主句倒装,从句不倒装)
Not until he failed the exam did he know that working hard is important.
直到考试失败之后他才知道努力学习是很重要的
B.有以下例句:He didn't go to sleep until his mother came back.倒装即可,老师说过的
B
后面是“真理”,用一般现在时。