用be的正确形式填空.(1)Helen and David ( ) in the classroom.(2)I ( )
用be的正确形式填空.(1)Helen and David ( ) in the classroom.(2)I ( ) a student.
(3) ( ) you a driver?(4) There ( ) only two children in my family.(5)There( ) some water in the bottle.(6)-What's the weather like today?-It ( ) windy.