-When will your brother return? –I will tell you as soon as he ___back.
Are you going to have a party on ________?
We flew to _______ Hong Kong. But _______ plane was late.
The flight _______ us _______ hour yesterday.
He is from _______ US and he speaks _______ English.
We arrived ________ the Beijing Railyway Station at 11:00 am.