单项选择题A.Because she wants to study for a test.B.Because she wants to go swimming at the student center.C.Because she has to do research in the library.D.Because she is not interested in the man.
单项选择题A.That David is not a serious student.B.That David doesn’t need to worry because he has a scholarship.C.That David won’t speak with him.D.That David wants to move back to his home town.