USING IS,AM, OR ARE

1. he is at school
2.they are at home
3.i am in class
4.she is on the bus
5.we are students
6.jack is a student
7.they are not from india
8.they or are married
9.marie is single
10.i am not from new york
11.itom are friendli
12.it is on the desk
13.i am 20 years old
14.it is sunday