—Who's this girl?—____________A.He's my sister. B.She's my brother. C.She's my sister.
( ) 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_______.