[SC悬赏令] 求问两条语法的题目，看不明白

The Kwakiutl recognized one social unit larger than the tribe--the confederacy, which wasa cluster of loosely knit, informallyrelated neighboring tribes who interacted with themselves more oftenthan between other tribes. (A) tribes who interacted with themselves more often than between(B) tribes who interactedamong each other more often than among(C) tribes who interacted with one another more often than with (D) tribes, interactingamong each other more oftenthan between(E) tribes, interactingamong one another more oftenthan with

首先，看到interacting跟interacted，我會習慣先找主語或是修飾對象。

ABC的interacted修飾tribes，DE的主語是the confederacy。思考是「部落內部的某一個群體比另一個群體更容易互動」，還是「聯盟內的某一個群體比另一個全體更容易互動」。這裡看起來應該是ABC的who interacted修飾tribes比較合理。

第二點，看到more than習慣性地看一下比較對象，只有BC有明顯的對稱。

第三點，B中的among是三者比較、each是兩者比較。無論是比較兩者或三者都是錯誤。因為文義是比一個群體跟另一個群體。

第四點，慣用語考點interacted with

The computer company hasannounced that it will purchase the color-printing division of a rivalcompany for $950 million, which is part of a deal that will make it thelargest manufacturer in the office color-printing market.

(A) million, which is part of adeal that will make

(B) million, a part of a deal that makes

(C) million, part of a deal making

(D) million as a part of a deal to make

(E) million as part of a deal that will make (as 表示作為，修飾purchase)

A which指代million錯誤，應該是指代整件事。但是which無法指代整件事。

B. a part of 明顯是同位語，但是million不等於part of。注意同位語跟beV一樣，前後必須是一模一樣的東西。

C, 同B

DE. 有兩個點，deal本身不具有未來的涵義，所以一般來說加上will是比較恰當的做法。原因是主要具有will，附屬句子通常也要有will的含意。(補充說明，具有未來含意的單字為plan/effort/attempt)。

另外一個點是，a part of VS part of ，a part of 一定是錯誤答案。