Ann: Thank you for the birthday gift, Dad. It's the best gift I have ever had. Dad: 1. ______ Ann: I've always wanted a computer. 2. ________ Dad: And you need it to chat ( 聊天 ) with your friends, too. Ann: I guess you are right. 3. ________ Dad: Send an email? Er, just do like this. 4. _______ Ann: Yes, Dad. I think it's easy. Dad: 5. _______ Ann: I won't, I promise.