Oh, the river smells terrible.<br />It used to be clean, but now a factory often puts waste into it. We should stop it.<br />Five<br />Oh, the river smells terrible.<br />It used to be clean, but now a factory often puts waste into it. We should stop it.
A . Because many people swim in the river.B . Because there are many fish in the river.C . Because a factory puts waste into the river.