单项选择题
[听力原文] M: Tom. Would you like to tell Miss Jane I’ll hand in my paper next week W: Sure, but first you should clean the blackboard.
A.In a toilet. B.At the post office. C.In a school. D.In a packing place.
A.Sculpture. B.Literature. C.Music. D.Tennis.
A.Kinds of atoms in it. B.Number of atoms in it. C.Quality of atoms in it. D.Quantity of atom in it.