even though the object is changed,but friends is here

题目

even though the object is changed,but friends is here
这句子有问题么? is changed对么?是不是应该changed做后置定语?

答案

有很大的问题噢
首先though跟but不能同时出现在一句句子中
然后is changed改成has changed比较好,如果表示主动的话
再次后面一句主谓不一致哦
even though the object has changed,friends are here