快简单明了http://tieba.baidu.com/club/11175140/invite/join/?c=1317270815de147a9d0a9745eb8a4548394http://tieba.baidu.com/club/11175140/invite/join/?c=1317270815de147a9d0a9745eb8a4548394
谓语动词s是什么?快简单明了http://tieba.baidu.com/club/11175140/invite/join/?c=1317270815de147a9d0a9745eb8a4548394
哦,不好意思,打掉了一个 ,是is this your book?
谓语动词s是什么?快简单明了
谓语动词指的就是am ,is ,are,以及他们的过去式,还有,do,did