---Thanks for your trouble.-Not at all. I’m pleased to help you.A. too muchB. too only

问题补充：

---Thanks for your trouble.

---Not at all. I’m pleased to help you.

A. too much

B. too only

C. only too

D. so much

答案：

A. too much

B. too only

(答案→)C. only too

D. so much

解析：only too 极为，非常 too eager / ready / glad / willing to do sth. 非常想干某事。根据句意选C。