`7.` is/ is

`8.` are/ are

`9.` are/ are

`10.` are

`11.` is

`12.` are

`13.` is

`14.` is/ is

`15.` are/ are

`16.` are

`17.` is

`18.` are

___________________________________________

`-` This: Này (Trỏ từ dùng với danh từ số ít)

`-` These `:` Này (Trỏ từ dùng với danh từ số nhiều)

`-` That `:` Kia (Trỏ từ dùng với danh từ số ít)

`-` Those `:` Kia (Trỏ từ dùng với danh từ số nhiều)

`-` This/ That + is + N

`-` That/ Those + are + N

`-` I/ You / We/ They/ N(s) + are

`-` She/ He/ It/ N + is

7. What is this?
It is an eraser
8. What are those (số nhiều) 

They are couches

9. Who are they?

They are Tom and Mary

10. You are my close friends

11. She is a nurse

12. Tam and Tu are teachers

13. Mary is a student

14. What is that? It is a ruler

15. What are these?

They are lamps.

How old are you?

17. What is it? A lamp

18. Who are Lan and Mai?

GOOD LUCK! ^^