---I’m sorry. That wasn’t of much help.-. And it was most helpful.A. Thanks anyway.B. I

问题补充：

---I’m sorry. That wasn’t of much help.

---. And it was most helpful.

A. Thanks anyway.

B. It doesn’t matter.

C. Of course not.

D. Sure it was.

答案：

A. Thanks anyway.

B. It doesn’t matter.

C. Of course not.

(答案→)D. Sure it was.

解析：考查交际用语：句意是：--抱歉，那不太有用。由回答And it was most helpful.可知是当然有用了。选D。相当于：Sure it was of heip。A项是仍然要感谢你，B项是没关系，C项是当然不。