Question

He prefers ________ this one ________ that one.

1. A.
   to exchange, of
2. B.
   exchange, for
3. C.
   to exchange, for
4. D.
   exchanging, to

Answer 1

C
解析：
prefer to do sth表示“喜欢干……”，exchange…for…意思为“用……换取……”故正确答案为C。