—Who is the man over there?—He is an old friend of _________ .
The little girl painted one side of the paper green but _________ side black.
There are _________ students in the classroom. Can you tell me where they are?
Tom’s mother was ill ___ hospital so he was ____ hospital to look after her.
― I never __________ him after he went to the USA.―Maybe you should write to him first.A. hear about B. hear of C. hear from D. hear out
―There will be ___________ to treat 10 people to lunch.―Sounds __________.