— I am afraid I've lost the book. I borrowed it from the library. 

— _____. [ ]

A. Good.

B. It's very kind of you to say so.

C. That's all right.

D. What a pity !

Ⅱ型麻风反应主要发生于（）

A.TT

B.LL

C.BB

D.BL

E.BT