Is she young? A. She's our principal. B. No, she's old.
( ) Each of the students in our class _______a computer.
( )—_______is your grandma? —She’s fine. Thank you.
( ) There are ________ months with _______ days in a year.
( )—Do you have ________ shells? —Yes, I have ________.
( ) The Great Wall is about 2,000 years_______.