问题描述：
He didn't 个go to Wuhan this summer .beacuse he went there before
这句话哪错了?改什么 请说明原因
打多打了一个个 为什么不把went 换成 had done 要换成 has been
这句话哪错了?改什么 请说明原因
打多打了一个个 为什么不把went 换成 had done 要换成 has been
问题解答：
我来补答展开全文阅读