Our rivers are running dry or being polluted. If we go on ignoring this, the consequences (后果) will not be hard to predict.改写为：If we go on ignoring our rivers are running dry or being polluted, the consequences will not be hard to predict.
举一反三
- The village is so small that we are always meeting our friends accidentally. A: running over B: running into
- Many lakes and rivers ________ by industrial waste. A: A have polluted B: B have been polluted C: C had been polluted D: D has been polluted
- We can save water by _________________ (not brush) our teeth under a running tap.
- 中国大学MOOC: Company’s future is hard to predict.
- The reason why we need citaions is that we can show our hard work.