I can’t thank you much because without your help I have won the first prize.
A. too; wouldn’t
B. very; shouldn’t
C. that; might not
D. so; couldn’t
网友回答
(答案→)A. too; wouldn’t
B. very; shouldn’t
C. that; might not
D. so; couldn’t
解析：too much 可以做副词意为非常；后半句是一个含有含蓄条件句的虚拟语气，表过去，主句应用：would have done 结构。所以选A 。