I have seen Sam and Tim yesterday.有什么错误?
问题描述:
I have seen Sam and Tim yesterday.有什么错误?
答
时态应该是过去完成时,你用了现在完成时
改成 I had seen Sam and Tim yesterday
其实 yesterday 最好用一般过去时,除非强调 见了他们 结果会有不同