大全987-221 平行的问题

1.        Consumers may not think of household cleaning products to be hazardous substances, but many of them can be harmful to health, especially if they are used improperly.

(A) Consumers may not think of household cleaning products to be

(B) Consumers may not think of household cleaning products being

(C) A consumer may not think of their household cleaning products being

(D) A consumer may not think of household cleaning products as（D）

(E) Household cleaning products may not be thought of, by consumers, as

这道题目给的正确答案是D,但是我有几点不解，逗号之后的many of them, they are used 所指的都是清洁工具，那么考虑到but在这里起到的转折的作用，选项 E 是最能够表达这个转折意思的，用清洁工具 和 清洁工具作比较才是比较正确地吧

多谢赐教