I could have such a situation but i didn`t.A.forecast B.shed C.overcome D.urged

How I wish I could have such a kind of friend用了什么句型 I could have such a situation but i didn`t.A.forecast B.shed C.overcome D.urged I don’t think he could have done such a stupid thing last night,____?A.do I B.could he C.did he D.has he I could imagine whatever i like such as a weii I don't think he could have done such a stupid thing last night,__ A.could he B had he Cdid he这里could不是情态动词,have不是助动词吗?为什么要用did?（答案选C） 这个选什么和为什么选这个选项.I don't think he could have done such a stupid thing last night,____?A.DO I B.COULD I C.DID I D.HAS HE I don't think he could have done such a stupid thing last night,-___?Ado I Bcould he Cdid heDhas he 是不是选c 反义疑问句I don't think he could have done such a stupid thing last night,____?一个关于反义疑问句的问题,I don't think he could have done such a stupid thing last night _____?A.do I B.could he C.did he D.has he答案是C,求讲解.就 请问“I have no such book.与“I have not such a book .的区别? 请问“I have no such book.”与“I have no such a book的区别? I haven't ___idea how that terrible accident could have happened to such a little boy.A.little B.the least C.less D.the little 壮语从句3.Not until his father was out of prison to sch ool._______.A.can John go B.John can go C.could John go D.John could go4.Never before __seen such a stupid man.A.am I B.was I C.have I D.shall I5.Rarely ___about such a silly thing.A.have I 10.I don't think he could have done such a stupid thing last night,_______ last night,_______ A.do I B.could he C.has he D.did he 虚拟语气could/should/would/might +have done 用法的差别?1.It's a great pity that you _____ have done such a thing.A.ought to B.should C.could D.might2.As I have nothing to do now,I _____ as well go with you.A.should B.would C.could D.might3._ I haven't_____idea how that terrible accident could have happened to such a little boy.I haven't_____idea how that terrible accident could have happened to such a little boy.A,little B,the least C,less D,the little答案选B为什么啊,C哪里不对 could I have your? could i have supper? how could you have such a condition in weather like this