all these people have in common is they have succeeded.A. What; thatB. That; whatC. That

问题补充：

all these people have in common is they have succeeded.

A. What; that

B. That; what

C. That; that

D. What; what

答案：

(答案→)A. What; that

B. That; what

C. That; that

D. What; what

解析：本题考查名词性从句。句中第一个what引导主语从句，在从句中作宾语；第二个that引导表语从句，从句中不缺少任何成分。故选A。句意：这些所有人共同之处是他们已经成功了。