问题
选择题
I firmly believe _____ he said at the meeting was right.
A．that
B．which
C．that what
D．what that
答案
答案：C
that 为引导宾语从句的连词，在 that what he said at the meeting was right 这一宾语从句中，又包含有what he said at the meeting 这一主语从句，而在该主语从句中，what用作动词 said 的宾语。