什么是be动词?be动词怎么用?do\does的用法!什么时候用do,什么时候用does.
问题描述:
什么是be动词?be动词怎么用?do\does的用法!什么时候用do,什么时候用does.
Tom--(have\has)an eraser.
___theyhavea TV?
——Tom ___ abook?
____Mary and Tom ____ a pencil?
快!快!快!快!快!快!
答
be动词的用法 be [bi:] vi 现在时 I am,you are,he is,we are,you are,they are (缩略式 I'm,you're,he's,we're,you're,they're),(否定缩略式 I'm not,isn't,aren't),过去时 I was,you were,he was,we were,you ...