题目内容：

用be动词的适当形式填空~```
1.___ I a teacher?Yes,you _____.
2.___ Tom a student?NO,he ________.
3.___ you new here?Yes,I _______.
4.___ your sister a worker?No,she ______.
5.___ this room nice?Yes,it_______.
6.___ our teacher happy?No,she/he ____.
7.___ his parents in China Yes,they_____.
8.___ your classroom big?No,it ________.
9.___ there a ball in the room Yes,there ____.
10.__ there any balls in the room No,there ____.