题干
-- What are you going to do this afternoon?
-- .
A：I'm going to buy a book
B：I'm a student
C：I go to school by bike
答案(点此获取答案解析）
A
-- What are you going to do this afternoon?
-- .
A：I'm going to buy a book
B：I'm a student
C：I go to school by bike
45÷53，要使商是两位数，方框里最小能填