Cats may look attractive and make good companions, but it was as hunters of vermin that they were originally domesticating.

正确答案 : domesticating --> domesticated

请问一下此处为何可以用 hunters ?

it was as hunters 好怪….为何不用单数 hunter?

谢谢回答~~

后半句是强调句式，转换为正常的语序是：

they were originally domesticated as hunters of vermin

这样再看看，不就明白了