How should we respond when the American bus driver says “hey, what’s up” to us?
A.Sit down
B.Say “Hi” to him/her
C.Do nothing
D.Say “Goodbye” to him or her
正确答案：B
How should we respond when the American bus driver says “hey, what’s up” to us?
A.Sit down
B.Say “Hi” to him/her
C.Do nothing
D.Say “Goodbye” to him or her
正确答案：B