We are thinking about can be admitted into our club. The number of members is limited.A.

问题补充：

We are thinking about can be admitted into our club. The number of members is limited.

A. who

B. what

C. which

D. whether

答案：

(答案→)A. who

B. what

C. which

D. whether

解析：选A考查宾语从句。句意：我们正在考虑谁会被允许加入我们的俱乐部。会员名额有限。分析句子成分可知，空后内容为宾语从句，宾语从句中缺少主语，且指人，故应用who。