---I need to advertise for a roommate for next term? Mary is interested.A. Why bothe

问题补充：

---I need to advertise for a roommate for next term.

--- ? Mary is interested.

A. Why bother

B. Why not

C. So what

D. What for

答案：

(答案→)A. Why bother

B. Why not

C. So what

D. What for

解析：考查交际用语。Why bother? 没有必要 Why not?为何不？ So what?那又怎样？ What for?为何目的？意思是：--我需要等广告寻找下学期的室友。--没有必要。Mary很感兴趣。