单项选择题
A．Something’vent wrong with the bus. B．She took somebody to hospital. C．She didn’t catch the bus. D．An traffic accident happened to her.
A．She’s not interested in history. B．She has no time to study. C．She’s a history student. D．She will study history later.
A．after 40 minutes. B．after 15 minutes. C．after 14 minutes. D．after 20 minutes