1．Good morning.

A. Goodbye. 　B. Good morning.

2．Nice to meet you.

A. Good morning. 　B. Nice to meet you too. 0pG9on4vquPBl3VutGcAr5i/y0XC92A5CdpHCcKO1eGM3BRgxGwPiUAR06TuuYA5