问题补充：
--- Nice to meet you.
--- .
A. Hello.
B. Nice to meet you.
C. How are you.
D. Good morning.
答案：
A. Hello.
(答案→)B. Nice to meet you.
C. How are you.
D. Good morning.
解析：Nice to meet you.的意思是很高兴见到你！回答也应是很高兴见到你！故选B。A. Hello.用Hello回答。C. How are you.回答是fine，Thank you.and you?D. Good morning.回答还是Good morning.
