Listen and choose. ( )1. A. How do you do? B. How are you? ( )2. A. How are you? B. How old are you? ( )3. A. How old is she? B. How old is he? ( )4. A. What's your name? B. What's his name? ( )5. A. Good morning. B. Hello. ( )6. A. Good morning! B. Bye-bye!