※ 引述《heystranger (森V森V)》之銘言：
24. The Iroquois were primarily planters, but supplementing their cultivation of maize, squash, and beans with fishing and hunting.
(A) but supplementing
(B) and had supplemented
(C) and even though they supplemented
(D) although they supplemented(O)
(E) but with supplementing
這題沒有特別大的疑問,只是想詢問如果C選項去掉and，即even though they supplemented......
even though 跟although意思的確相差不大。所以這邊並非主要的的解題點。
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- 總結 -
1. even though也是GMAT接受的正確用法。