1.I'm sorry you've missed the train.It__an hour ago.

来源：学生作业帮编辑：百度作业网作业帮分类：英语作业时间：2024/05/13 07:55:01

1.I'm sorry you've missed the train.It__an hour ago.
A.had left B.left
2.She said she ___her mother 3 letters in one month.
A.had written B.wrote
3.His brother ___ a football player since he came to this school.
A.was B.has been C.had been D.is
我想问的是现在完成时和过去完成时的区别.
以及完成时态是不是不能加具体时间,比如:an hour ago这样的.

1.A 释义：火车走发生在过去（一小时前）的过去,所以应用过去完成时.
2.A 释义：写信发生在她说这件事之前,就是过去的过去,要用过去完成时.
这也是一个间接引语,她写信发生在过去,变为间接引语时,再退一个时态,变为过去完成时.
3.B 释义：只要句中出现Since,要用现在完成时,表示过去的动作持续到现在,并有可能持续下去.

1.I'm sorry you've missed the train.It__an hour ago. 一道英语题I'm sorry you've missed the train.It___10 minutes ago.A I'm sorry you've missed the train ,It __ five minues ago. I'm sorry you've missed the train.It___10 minutes ago.填什么?为什 I’m sorry you’ve missed the train.It ten minutes ago. I’m sorry you’ve missed the train. It _______ 10 minutes ago i am sorry you‘ve missed the train.It ____10 minutes ago. i'm sorry you have missed the train.it left 10 minutes ago用l I'm sorry you're missed the train.It _____10 minutes ago. I'm sorry you've missed the tran .It _ 10 minutes ago. You missed the train.（I’m sorry）选择.I'm sorry you'v missed the train ,it-----------10 minutes