surprised me most was such a little girl of seven could play the piano so well.A. That;

问题补充：

surprised me most was such a little girl of seven could play the piano so well.

A. That; what

B. What; that

C. That; that

D. What; what

答案：

A. That; what

(答案→)B. What; that

C. That; that

D. What; what

解析：句意：使我吃惊的是这么小才七岁的孩子能弹钢琴这么好。这里第一空是what引导的主语从句，它在从句中做主语，并且起连接的作用；第二空是that引导的表语从句，它在从句中不作成分只起连接的作用。