Question

so suddenly------that i hadn't prepared for it ,what a pity i had let it go . A.the chance came B.t

1.so suddenly------that i hadn't prepared for it ,what a pity i had let it go .
A.the chance came B.the chance would came C did the chance come D. would the chance come

2.-----you couldn't have bought me any present better
-------_________
A.i'm glad you like it B then i'll give you a better one next time
C you have a gift for present . D i'm sorry i can't make you satisfied .

3.It was the practice _____ he got abroad ___made him a god English speaker
A what that B that what C that which D which that

4. look at the trouble i am in .If inly I ___your advice
A followed B would follow C had followed D should follow

5.________,i'd have told you .
A. IF I would have know B.if T had have know
C .had I know D should I know

麻烦说一下、选答案的理由、谢谢诶~~~~

Answer 1

c, so 放句首句子要倒装
A, could not have done 表示过去没有。。。。表示这次礼物比以前都好
D which he ...定语从句修饰practice; that made....这个句子是强调句，it is practice that made him ....
C 虚拟语气，过去完成时表示对过去的情况的假设。
c 虚拟语气，对过去的猜测，主句用过去将来完成时，从句为过去完成时。if 从句可以省掉if 把谓语提前倒装。

好累啊，希望你能明白我的解释。