你知道be动词吗？be动词分为哪三个？am isaream is are am is are 怎么用？怎么用？我用am ，I am你用are ，you areis 用于他她它，he is she is it is复数都用are ，we are you are they are一不留神就把这部分内容掌握了实战！实战！GOGO！请用be 动词的适当形式填空 I _ a boy. _ you a boy? No, I _ not.请用be 动词的适当形式填空 The girl _ Jacks sister. The dog _ tall and fat.请用be 动词的适当形式填空 The man with big eyes _ a teacher. _ your brother in the classroom?请用be 动词的适当形式填空 How _ your father? Mike and Liu Tao _ at school.请用be 动词的适当形式填空 Whose dress _ this? Whose socks _ they?请用be 动词的适当形式填空 Who _ I ?
