III. Rewrite the sentences, so that their meaning stays the same, using the beginning given for each. 1. We must leave now, or we will miss the plane.  If we don’t …………………………………………………………………… 2. Be careful or you may fall.  If you…………………………………………………………………………. 3. Hurry up or we’ll be late for the concert.  If……………………………………………………………………………… 4. Our sources of energy will soon end if we don’t try to save them.  Unless………………………………………………………………………… 5. You will catch a cold if you don’t keep your feet dry.  Unless………………………………………………………………………… 6. If she doesn’t work harder, she’ll lose her job.  Unless…………………………………………………………………………