UNIT 5 What’s this?_P28 5-4 Look, ask and answer

P28 5-4 Look, ask and answer

5-4-1 Model 5-4-2 Picture 1 5-4-3 Picture 2 5-4-4 Picture 3 5-4-5 Model 5-4-6 Picture 1 5-4-7 Picture 2 5-4-8 Picture 3