单项选择题
M: Nancy, why were you late today W: I overslept and missed the bus.
A．She got up later than usual. B．The bus was late. C．She forgot she had classes.
A．In the cupboard. B．On the desk. C．She couldn’t remember exactly.
A．12 noon to 9 p.m. B．9a.m. to 5 p.m. C．9a.m. to 12 noon.