Знатоки английского ,помогите пожалуйста с 23 упражнением!

1. What colour is this table? It is brown.
2. What colour is this chair? It is grey.
3. What colour are these walls? They are white.
4. What colour is.your pencil? It is red.
5. What colour is your bag? It is black.
6. What colour is your tie? It is purple.