选择适当的答案补全对话。 A: Hi, Jim! B: Hello,Wang Lei! 1 Dad,this is Wang Lei. 2 A: Good afternoon,Mr Green. C: Good afternoon,Wang Lei. B: 3 A: How do you do,Mrs Green? D: 4 B:Wang Lei,this is my brother, Jeff. A: 5 E: Nice to meet you,too.Wang Lei. A. Nice to meet you. Jeff. B. Mum, this is my friend,Wang Lei. C. Come and meet my family. D. Wang Lei,this is my father. E. How do you do,Wang Lei?