—______ will the fog and haze last?—I’ve no idea. There is no sign of an end.
_____ of them knows French, so I have to ask a fourth person for help.
Can you tell me _____ the birdwatchers in Zhalong Nature Reserve? I only know that _____ of them are from our school.
____ I fill in the application form right now, sir? No, you needn’t. You can complete it this afternoon.
Do you know ______ this 3G mobile phone belongs to? Let me see. Oh, it is _______.
------Who is the guy with a pair of sunglasses?----He is ______ university student from _______ Island in England.