Решение:
- There are seven dictionaries in a week.
- We've got fifteen English classrooms on the shelf.
- I've got a sister and two brothers.
- I keep my CDs in two boxes under my bed.
- Let's have steak and potatoes and peas for dinner.
- Can you put the plates and knives on the table, please?
Ответ: dictionaries; classrooms; brothers; boxes; potatoes; knives.