do you have ()trouble repairing the machine?no;any;some;much.

问题描述:

do you have ()trouble repairing the machine?no;any;some;much.
应该选哪个?为什么不能选any?;2,.would you like to go to the concert with me tonight?i'm sorry,()i have an exam tomorrow.为什么要填but?我对不起,但是.,不觉得有点不通吗?as;for;but;since

MUCH.因为按常识来说,维修机器本身就是一件比较麻烦的事情,就不会问any,问的人一般的意思应该是会不会“很麻烦”?太麻烦可能就要采取别的措施了,这个意思.
因为这句话是在拒绝对方,所以陈述原因也要委婉,but转折表委婉语气.直接陈述原因as;for;since都不够委婉.
no one except my english teacher ()anything about what i did这里面为什么填knows呢?主语是no one