答案有问题的一题T9Q31

zhangluE

Scholars who once thought Native American Meratures were solely oral narratives recorded by missionaries of anthropologists now understand this body of work to consist of both oral Meratures and the written works of Native American authors, who have been publishing since 1772.

A.    Scholars who once thought Native American Meratures were solely oral narratives
B.    Scholars thinking of Native American Meratures once solely as oral narratives, and
C.    Scholars who once had thought of Native American Meratures solely as oral narratives and
D.    Native American Meratures, which some scholars once thought were solely oral narratives
E.    Native American Meratures, which some scholars once, thinking they were solely oral narratives


答案是A，宾语从句难道不加 That也可以吗？