8. I am engineer. 9. My son is ... pupil. 10. He is ... good ... pupil.
11. This is ... house. 12. This is my ... pencil.
13. You have some ... pencils, but I have no ... pen-
cil. Give me ... pencil, please.​

9. a

10. a; -

11. a

12. -

13. - ; - ; a

Объяснение:

i am an engineer.

my son is a pupil. he is a good pupil. this is a house. this is my pencil. you have some pencils, but i have no one pencil (?). give me a pencil, please.