The problem was came upwith yesterday .
有确定的过去时间副词,只能用一般过去时,不用完成时.
问题以前以前提出来了是The problem had been come up with before?那下列几个句子怎么说呢?Have you returned the book today?你今天还书了吗?Had you returned the book yesterday?你昨天还书了吗?Did you return the book today?Did you return the book yesterday?有确定的过去时间副词,只能用一般过去时,不用完成时。