读对话并回答问题。 Linda : Hello. I'm Linda. Tony : Hi. I'm Tony. What's your last name, Linda? Linda : It's Smith. What's your last name, Tony? Tony : It's Brown. 1. What's her first name? _____________________ 2. What's his first name? _____________________ 3. Wh at's his last name? _____________________ 4. What's her last name? _____________________