把下面的句子翻译成中文。 1. I have three new teachers. ________________________________________________________ 2. Who are they? ________________________________________________________ 3. Her class is so much fun. ________________________________________________________ 4. She's young and pretty. She's a university student. ________________________________________________________ 5. Do you have new teachers? ________________________________________________________ 6. He's from Canada. ________________________________________________________ 7. Who's that young lady? ________________________________________________________