16 5. smile / If / teeth/your/ have / regularly, / you /may/a/brush / brighter. -> 6. If / must/have /a/question/ you / and / raise / hand/ask/your/the/teacher. 7. If / you / license / car / you / have / drive / must/a/a/to/driver's / want -> 8. you / have / shouldn't / money / If/ it / you / don't / spend / much / on/ unnecessary / things.
