用be动词的适当形式am,is或are填空

问题描述:

用be动词的适当形式am,is或are填空
1."I"__the ninth letter in the ABC.
2.It __an English book.
3.--__ you a teacher?
--No.I__ a nurse.
4.20161009__her ID card number.

1题:is
2题:is
3题:Are am
4题:is