【Three months passed and then……】中的【three months passed】是句子还是短语
RT.
请说明理由.
【本人外语语法极其不好,请、多解释下.自己认为这个可以是句子,three months是主语,passed是宾语,不对的话说下理由.不然我会不太明白】
完整的句子是：
Three months passed,and then one morning,Sam found his wallet outside his front door.