问题补充:
It is usually thoughta little child says is truth.
A. What that
B. that what
C. which
D. that
答案:
A. What that
(答案→)B. that what
C. which
D. that
解析:考查名词性从句,固定句型:It is thought that 据认为,that后从句的主语是一个主语从句,主语从句中a little child says后缺宾语,所以用what,故选B。