问题补充：
I wouldn’t think it to ask him to the club—he’ll only refuse.
A. worthwhile; join
B. worthwhile; join in
C. worthy; join
D. worthy; join in
答案：
(答案→)A. worthwhile; join
B. worthwhile; join in
C. worthy; join
D. worthy; join in
解析：句意：我认为让他参加俱乐部不值得—他只会拒绝。worthwhile 和worthy都有“值得”的意思，但是worthwhile用于：It is worthwhile to do /doing sth的句型，而worthy用于词组“be
worthy to be done或be worthyof being done”,所以第一空填worthwhile，第二空填join，后面接组织，join in后面接活动或人，所以选A。
