Пожалуйста помогите мне надобно вот а 18 13 пожалуйста

Задание 13
1.There are a lot of books on the shelf
2.There are chairs next to the fireplace
3.There is a computer on the desk
4.There is a new carpet on the floor
5.There is a big poster on the wall
6.Have you got a walkman of your own?
Задание 18
1. wash
2.watch
3.go
4.do