— __________
— You might as well write a thanks-note.

选择一项：

A.
How do you like the rewards?


B.
What do you do with the rewards?


C.
Could you suggest some ways of the rewards?

解析：本题考核“征询建议”的交际用语。常用What do you think of…?/What's your idea of…?/What about…?/Shall we…?/Could you…?等句型来表达征询建议。根据第二说话人包含的信息，确定是给出意见，所以答案是C。 正确答案是：Could you suggest some ways of the rewards?