①A: Goodbye, Mum.
B: Bye, Mike.
②A: Good morning, Sarah.
B: Good morning, Mike.
③A: I have a pencil.
B: Me too.
④A: Mr. Jones, this is Chen Jie.
B: Nice to meet you, Chen Jie.
⑤A: Good afternoon, Miss White.
B: Good afternoon, Mike.
⑥A: Hello! I'm Mike.
B: Hi! My name's Liu Xin.
A: Nice to meet you.
B: Nice to meet you, too.
①