since two day ago和two day ago还是for two day相同?怎么区分

来源：学生作业帮编辑：拍题作业网作业帮分类：英语作业时间：2024/04/24 05:42:13

since two days ago相当于for two days,常用于现在完成时态中
two days ago 两天前,用于一般过去时.
如
The fish died two days ago .
The fish has been dead since two days ago.
The fish has been dead for two days.
加油!不明白再问!

since two day ago和two day ago还是for two day相同?怎么区分 two day ago改成现在完成时 paul has been away form canada since two day ago ____ two da two day ago等于 the day before yesterday 和two days before 吗? 英语two days ago 和the day before yesterday 区别英语 two days ago 和the day before yesterday ,two days before the day before是否等于two days ago ask for two days off 还是two-day off in two days,two days ago和the day before yesterday直接改间接引语怎样改? two-day还是two days呢? for a day or two how long 后面怎么加 for two days 和 since two days ago 到底怎么加什么时候加