English jokes about asking for directions

Narrator: One day, Samantha Katie and Zhu Jiao are planning their summer vacation. A: Where do you want to go? I want to swim. C: But I can't swim, and it's too crowded. So I don't want to go there. How about going to Beijing? Can Beijing bring us a lot of fun? C: Yes. We can visit many landmarks in Beijing, such as the Summer Palace and Tiananmen Square. They are all beautiful. Ok, let's go to Beijing for the summer vacation. Narrator: In the summer vacation, Samantha, Katie and Zhu Qiao went to Beijing to play together. They visited the Summer Palace, the Great Wall and Tiananmen Square. But they are not happy. Because they think the air in Beijing is not clean and air pollution is bad for their health. A week later, they came back. A: Oh! The air in Beijing is very dirty. This is harmful to our health. B: Yes. That's air pollution. How can we purify the air? We can plant more trees. A: Why? B: Oh! I know. Trees absorb harmful gases from the air and release oxygen into the air. They can help us clean the air. C: Yes. That's true. Trees are useful. They can make streets more beautiful and less noisy. Fruits and nuts for cola and beans for coffee all come from trees. A: Wow. These trees are great. Are the wood in our pencils and the paper in our notebooks from trees? B, C: Yes, they are all from trees. A: Trees are really useful. Why don't we plant many trees in our city? The air in our city will become clean.