III. Rewrite these sentences, beginning as shown, so that the meaning stays the same. 1. I don't buy it because I don't have enough money. → If I 2. I didn't buy it because I didn't have enough money. → I would 3. There is a test. I don't know that, so I don't study for it. If I 4. I'm busy right now, so I can't help you. → I could 5. He's very thin, that's why he feels so cold.
