求教这个changers单词在这个句子里对吗,是不是应该换成changes,我觉得原句错了,求教ing
求教这个changers单词在这个句子里对吗,是不是应该换成changes,我觉得原句错了,求教ing
Scientists do not know why dinosaurs became extinct,but some theories postulate that changers in geography,climate,and sea levels were responsible.
科学家不知道恐龙为何绝种了,但是一些理论推断是地理,气候和海平面的变化造成的.