新PREP1-214

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

A. Scholars who once thought Native American literatures were solely oral narratives

B. Scholars thinking of Native American literatures once solely as oral narratives, and

C. Scholars who once had thought of Native American literatures solely as oral narratives and

D. Native American literatures, which some scholars once thought were solely oral narratives

E. Native American literatures, which some scholars once, thinking they were solely oral narratives

正确答案是A。疑惑的是，think sb + be + sth似乎有问题？ think sb sthj没问题，think that sb +be+sth也没问题，原句的结构怎么理解呢？

A---who think (that-omitted)+a clause

it's not---think sb be sth

谢谢。糊涂了。想成V加宾语从句要用that...