Hi Teacher,
Please allow me ask for an interesting question.
I am in China and my company's headquarts is in US.
And we often have conference meeting with US friend.
Maybe you know,they are in different time zone between China and US,for example,it is morning in Chian while evening in US.
my question is:How can I say hello to US friend?Good morning?Good evening?or anything eles?
(Suppose it is in the morning in China)
Thanks
