题目内容：

They've made friends since they came to China这句话哪里错了?

优质解答

since 是一段时间,这么表述的话成了从他们到中国以来就一直在互相交朋友,不太正常,所以应该是They've been friends since they came to China.从他们到中国以来就一直是朋友