You need to figure out the following details from your guest before receiving visitors at the airport_. ( )

You need to figure out the following details from your guest before receiving visitors at the airport_. ( )
A.when and where does he get on board?
B.What’s his flight number?
C.How long is the journey?
D.How’s the weather condition?
正确答案：when and where does he get on board?
What’s his flight number?
How long is the journey?
How’s the weather condition?