a. It is a post box.
b. They are scissors.
c. They are trainers.
d. It is a tree.
e. They are fish.
f. They are jeans.
g. It is a mobile phone.
h. It is my lunch.
i. They are mugs.
j. It is an MP3 player.
k. It is a letter.

Matching with the questions from exercise 4:
1. What are they? - b. They are scissors.
2. What is it? - a. It is a post box.
3. What are they? - c. They are trainers.
4. What is it? - d. It is a tree.
5. What are they? - e. They are fish.
6. What are they? - f. They are jeans.
7. What is it? - g. It is a mobile phone.
8. What is it? - h. It is my lunch.
9. What are they? - i. They are mugs.
10. What is it? - j. It is an MP3 player.
11. What is it? - k. It is a letter.