them是宾格,只能作宾语,放在介词动词等后面They would overcome them with their wit.他们将用智慧战胜这些困难。And what is the best present to all of them?对以上的人及所有人的最好礼物是什么?those是代词,可以作主语,也可修饰名词。Those are not generators.那些不是发电机。I am one of those people.我是这些人当中的一个。