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Not until ______ a third time ______ that his English abilit

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Not until ______ a third time ______ that his English ability was quite limited.
A.he failed; he admitted\x05\x05\x05\x05\x05B.he failed; did he admit
C.did he fail; he admitted\x05\x05\x05\x05\x05D.did he fail; did he admit
Not until ______ a third time ______ that his English abilit
选B~
Not until 放句首引起倒装 但是 倒的是后半句 所以前面正常语序 sb did 后面是 did sb do
O(∩_∩)O
再问: 为什么后半句要倒装,前半句不倒装?
再答: 这个是外国人规定的语法~~~ 就是这样的 背出来就好了。 要说出个为什么 我也不知道~ 老师就是这么教的~~
再问: 你的意思是not放句首的句子,都是前面不到装后面倒装
再答: Not until 是特殊情况 前面不倒后面倒。 其他的就不一定了要看具体是什么了, 不能以偏概全。 也有不倒装的情况 譬如 It is not until his mother came home that he turned off the TV. 所以背背清楚就好了 如果你能分辨主从句的话就可以背 倒主句不倒从句这个规律