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Tony: Hey, Mark, maybe we could go swimming in the river later this afternoon.
Mark: I don’t think I want to go, Tony.
Tony: Why not?
Mark: I was there last weekend and the river was really dirty. Even the bottom of the river was
full of rubbish, and there were no more fish for fishermen to catch.always been the nicest river in this town.
Mark: Not anymore. I think people are throwing litter into the river. Factories are also putting
waste into the river.
Tony: That’s terrible! We should write to the government. They should close down the factories.
Mark: Good idea! But I think everyone in this town should help to clean up the river, too. Everyone should play a part, not just the government.
