I can’t say a thank you much. I couldn’t have succeeded without your help.A. tooB. quiteC

问题补充：

I can’t say a thank you much. I couldn’t have succeeded without your help.

A. too

B. quite

C. that

D. very

答案：

(答案→)A. too

B. quite

C. that

D. very

解析：句意：我再怎么感谢你也不过分，没有你的帮助，我是不能成功的。cannot do something too much 再……也不过分。这里couldn’t have succeeded是虚拟语气，用介词without引出条件，表示对过去的虚拟所以用情态动词+have done；这里是cannot…too再……也不过分，是固定短语，故选A。