Mingming will have a class meeting _______ 3:30 this afternoon.
on
in
at
Do you know the girl _______is singing in the classroom?
—I don’t know _______ now. —She is much better today.
She has never been to Hong Kong,______?
Yao Ming works hard on his English and ________
—This pair of shoes ____ belong to Jack. He likes this kind very much. —It ____ be his. It’s too large for him.