CHIA ĐÔNG TŲ TOBE TROG CÁC CÂU SAU

Mn giúp mik lm bài vs tôi nay mik pk nôp r ak. Mog ddc giúp đo
CHIA ĐÔNG TŲ TOBE TROG CÁC CÂU SAU: 
1. Nam's school ( be).... big?  ->................
2. There ( be)...... 45 Students in your class?   ->...............
3. I ( be)...... in grade 6.
4. It ( be)......... my book.
5. Which class she ( be)........ in?   ->...................
6. This ( be) is your ruler?...................
7. - Your classroom ( be)........ on the fourth floor?    ->..................
     - No, it (be)......... on the third floor.
8. I ( be not).............. a student. I ( be)........... a nurse.
9. They ( be not)............ her father and mother.
10. The doctors ( be not).............. in the room.
Giúp mik vs ak camon các bn nhiêu!!!