On a sunny day. what can I do? Let me tell you! On a sunny day, I can plant trees. I can go hiking. I can play the games. I can go to fly a kite. I can go to do exercise. I like sunny weather! But I don't like rainy days. Beacuse I can't play volleyball. I can't do many thing. I have to stay at home and watch TV. So, I don't like rainy days.