Exercise 3: Choose the best option A, B, C or D.
If we use ……………….. paper, we will save a lot of trees.
Giải chi tiết:
What are these things? Choose the correct answer.
They are of different colours. You draw and colour with them. They are..........
What are these things? Choose the correct answer.
It has many letters and words. You use it to look up new words. It is a.............