4.1)this is a books
2)this is a students and that is a teachers
3)this mans are doctors
4)where is your brothers
5)They are students
6)they are sitting ib the classroom
5.1)they don't looking at me
2)he is not working
3)i am not a teacher
4)she is not our student
5)close your book ,please
6)not
4.1)this is a books
2)this is a students and that is a teachers
3)this mans are doctors
4)where is your brothers
5)They are students
6)they are sitting ib the classroom
5.1)they don't looking at me
2)he is not working
3)i am not a teacher
4)she is not our student
5)close your book ,please
6)not