V. Rewrite the sentences. 1. The visitor spoke quickly, so I couldn't understand what he said. => I couldn't.......................................... 2. They can't come on Saturday because they are busy. => They are busy.................................. 3. She got up late but she was not late for school. => Although........................................... 4. The trip to Chicago is not so expensive as we think. => The trip to Chicago is..................... 6. My English book are on the table. => The English books on......................