if had done XX would have done XX 要是...就... 例句: If I had met you two years ago I would've become a slim person. 我要是两年前就遇到你,我现在就是个瘦人了。 make (the) bi...
2、They have done things they ought ___ A. not to do B. not to be done C. not to have done D. not having done 3、I' m sorry I couldn't get in touch with him before he left, I ___ him earlier. A. had a telephone B. have phoned C. should have...
1. If sb had done sth (坏事), sb would never have done sth (好事). 如果某人过去做了某事(坏事),那么他永远不可能做某事。 If Hugh Miller, after toiling all day in quarry (采石场), had devoted his evenings to rest and recreation, he would never have be...
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