The letter ____three days ago and it ____yesterday.A.was posted,arrivedB.had been posted,was arrived
问题描述：
The letter ____three days ago and it ____yesterday.
A.was posted,arrived
B.had been posted,was arrived
答
首先it was arrived
yesterday 就是一个明显的错误，此处不能食用被动语态
答
第一个空：信应该是被邮寄,所以用被动语态, 三天前,只能用过去式的被动语态,was posted.
第二个空arrive是不及物动词,不及物动词没有被动语态,所以选arrived.