—Mary, could you tell me if your mother ________ our school sports meeting tomorrow? —I think she will come to school if she _________ free.
He is better at playing badminton.A.is good at B. does better in C. does best in
Kate and I _______ doing ________ homework now.
Do you have __________ to do?
--Tom has been to Beijing before.--________________.
Song Zuying’s ________ is sweet.