1．Good morning.

A. Goodbye. 　B. Good morning.

2．Nice to meet you.

A. Good morning. 　B. Nice to meet you too. IKufnFyLyPb2ZHqf7q+m6Oh8EQTp/Z789Bk5tcOqb52XyWc3VUDUVJXbfnbZAvfL