（1）    T-9-Q31.
                

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.

1. Scholars who once thought Native American Meratures were solely oral narratives

2. Scholars thinking of Native American Meratures once solely as oral narratives, and

3. Scholars who once had thought of Native American Meratures solely as oral narratives and

4. Native American Meratures, which some scholars once thought were solely oral narratives

5. Native American Meratures, which some scholars once, thinking they were solely oral narratives

求助一道题。在已有版本里找不到讨论。

我觉得B 貌似也说得通啊，thinking 和recorded两个分词结构修饰主语，一个表示主动一个表示被动。

答案是A。A的话后面的那个recorded后面的成分要怎么解释呢？还有A中的thought后面不是应该加that吗？宾语从句that不能省。

NN们帮助分析一下啊~

（1）    GWD-21-Q41

The Environmental Protection Agency’s proposal to place restrictions on both diesel fuel and diesel engines has sparked a counterattack by the oil industry, saying that the move will exacerbate the nation’s fuel supply problems.

A.    on both diesel fuel and diesel engines has sparked a counterattack by the oil industry, saying

B.    on both diesel fuel and engines have sparked the oil industry to counterattack, and they say

C.   on both diesel fuel and diesel engines has sparked a counterattack by the oil industry, which says

D.   both on diesel fuel and engines has sparked the oil industry to a counterattack, saying

E.    both on diesel fuel and diesel engines have sparked the oil industry to counterattack, and it says

还有这一题，貌似正确答案C说不通啊，which难道是指industry？？我选的是A 逻辑主语是proposal

关于你的第一题，B有两个问题：

1.once应修饰think，也就是曾今think，与后面的now understand形成对比

2.所谓recorded与thinking对应，请你仔细看一下句意，若是这样并列说明recorded修饰scholars语义明显不通，recorded应作定语修饰oral narratives