— Can you lend me the book Gone with the Wind? — Sorry. I returned it to the library just now. Maybe it is still ____.
They don't study in NO 1 middle school, ___ those boys.
Bill was staying on a farm with his uncle last summer. So ___ Mary.
The house you have just bought is ___ mine.
---How many eggs are still there in the fridge, Bill? --_____.
About ___ of the teahers is our school ___ young people under thirty.