1．Good morning.

A. Goodbye. 　B. Good morning.

2．Nice to meet you.

A. Good morning. 　B. Nice to meet you too. 5z7JU9eNNVGsrc2ZCiiAVdIA7BXNK+svzTzhMqfoRMmIy4TKU6lSVWR0fcJFuFbh