单项选择题
A．Monitor students’ sleep patterns. B．Help students concentrate in class. C．Record students’ weekly performance. D．Ask students to complete a sleep report.
A．Plan his budget carefully. B．Give her more information. C．Ask someone else for advice. D．Buy a gift for his girlfriend.
A．to best satisfy their body's special needs B．to strive to maintain the best possible health C．to meet the strictest standards of bodily health D．to keep a proper balance between work and leisure