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。