thay were the first people__in that vast farmland(答案是to live)为什么不填living
问题描述：
thay were the first people__in that vast farmland(答案是to live)为什么不填living
答
这里的to live表示是一种目的，解释为他们是第一个要居住在..的人，如果用living，就要改成they were the first people who had been living in....，因为the first后要加完成时。
答
the first to do 固定搭配啊！
答
the+序数词+to do sth是固定结构
如the first to get there
the last to leave