but why ( )some bananas?A.not buy B.don't buy C.not you buy

英语问题～急啊!～
选择题：
But why_______cats and dogs do the same?
1.do 2.does 3.don't 4.doesn't
"Yes,Hall?"says the teacher_______.
1.happily 2.glad 3.happy 4.kind

英语翻译
Sonnet So bright is the moon tonight,and so blue,But why is my heart so heavy,so cold?Oh my honey,how can you be that cruel?Left me ‘lone,thinking of you made me old.Where have all the old beautiful days gone?When you are so lovely,so temperate.What is known as happiness,I have none,The loss of you nothing can compensate.Won’t you ever come back again,my dear?Tell me that you still love me,care for me?At that time there will be nothing we fear.What would you then want,just a cup of tea?No matter what comes,darling,keep in heart,That I have loved you so deep,and so vast.This sonnet was written in my English literature class when I was a student in university.Days ago when I sorted out those old materials,I found it and an idea came to me.Why not post it in the forum?Everybody has his own word,and everyone wants himself heard,so why are you still keeping silent?Why not speak up and show yourself?Express yourself in a poem,a prose or even a novel if you like.All those who will make your voices heard,please follow me and let us start a wonderful journey to a splendid brave new world where we can better express ourselves in English.

There was a lot of fun at yesterday's party.You_come,but why didn't you?
A.must have B.should C.need have D.ought to have
我选的是B
不理解为什么用'have come'这个结构,

这句话有错吗I really want to give up, but why, I still can't don't love you?This is so pain, wh
I really want to give up, but why, I still can't don't love you?This is so pain, why should I such torture yourself?
这句话有错吗?错在哪

关于why的用法
I'm sure Harry will remember,but why( )him a riing in case he forgets?（可多选）
选项有1.don't you give 2.not to give 3.not give

1、But why__________some bananas?
A.not buy B.don't C.not you buy D.don't
2、__________fine day it is today!
A.How B.What C.How a D.What a
3Q了!

英语选择体
Swallows fly to the south before winter comes,But why don't cats and dogs do______?
A.different B.early C.the same D.like it