1)if从句+i don't know who/what,etc.does/**/has,etc.;主语部分也可以用nobody does/**/has,etc.或everybody does/**/has,et c.来代替(这里的if从句往往是正话反说,反话正说): if he can't do it,i don't know who can.要是他做不了这件事,我不知道还有谁能做.(强调只有他...
not until的强调句式: it **/was not until+从句/表时间的词+that+. 举例: it was not until yesterday that i learned it. 顶昨天我才听说这62616964757a686964616fe78988e69d8331333365666332件事。not until的倒装句式: not until+从句/表时间的词+助动词+...