A、Welcome
B、See you
C、How are you
A、Good morning
B、Ok
C、Welcome
A、How are you
B、Where are you from
C、How old are you
A、How do you do
B、How old are you
C、How old is she
A、What's he
B、Who's she
C、Who's he
是
否
A、Hi,Good morning
B、Nice to see you
C、Hi,I;m Betty.I am from the USA
C、How old is you
B、Goodbye
C、Thanks