1. a car, a computer, he's coputer is new.
2.a cat, and dog, The dog's never bites the cat.
3.a tree, the tree is green.
4.I can see three boys , the boys are playing.
5.a bicycle, my bicycle is black, my friend has no bicycle.
6.Our room is large.
7. We wrote a dictation yesterday.
8.She has two daughters and one son. Her son is pupil.
9. gave a bracelet for her birthday, she liked the bracelet.
10. My brother's friend has no dog.
11. This pencil is broken. Give me that pencil, please.
12. She has a ball, the ball is big.
13.I've got a letter from my friend yesterday, the letter was intresting.
14. at the hotel. at the hotel, in the restourant.
15. I've got an idea.
16. What the shame?