单项选择题
A．He had a narrow escape in a car accident. B．He is hospitalized for a serious injury. C．He lost his mother two weeks ago. D．He has been having a hard time
A．Conflicts between studies of different races are unavoidable. B．Students of different races are prejudiced against each other. C．Interracial lodging does more harm than good. D．Interracial lodging may have diverse outcomes.
A．They requested to transfer to a safer department. B．They quit work to protect their unborn babies. C．They sought help from union representatives. D．They wanted to work shorter hours