--- _______ they ? --- They’re my friends.A. Who B. Who’s C. Who’re
The ticket to Nanjing Youth Olympic Games is________, _______ I still keep it.
An old friend of Tom’s always helps both my brother and_ with___ English.
When the _____world was in front of us, we shouted excitedly.
— When did the plane _______? — Half an hour ago.
This umbrella is_______ that one, but _______than that one.