8. The two families could not live together mainly because they were not congenial.
(A) compatible
(B) confiscatory
(C) faithful
(D) belligerent

compatible (a.)一致的

與…一致；與……和諧相處

be compatible with= be consistent with= congruous

= congruent = congenial

confiscatory (a.)充公的

faithful（a.)忠實的

belligerent (a.)好戰的 = hostile

belligerent 好戰的、敵對的：當形容人時，「belligerent」指的是喜歡與他人爭吵、尋釁或參與衝突的特性。這個詞通常用來描述人們具有好鬥、好爭論或挑釁的傾向。

1. The belligerent man shouted insults at the other drivers on the road.
   （那個好鬥的男子對路上的其他司機大喊侮辱性的言語。）

2. The two belligerent countries engaged in a series of military conflicts. （這兩個敵對的國家進行了一系列的軍事衝突。）

題目缺少底線註記，應修正如下：

The two families could not live together mainly because they were not congenial.

資料來源：

https://www.long-men.com.tw/EDM/edm355/download/100/100_%E8%8B%B1%E6%96%87_%E8%A9%A6%E9%A1%8C.pdf