单项选择题
A．Because the bird couldn’t repeat his master’s name. B．Because the bird screamed all day long. C．Because the bird uttered the wrong word. D．Because the bird failed to say the name of the town.
A．warm B．hot C．heated D．cool
A．They are kept in open prisons. B．They are allowed out of the prison grounds. C．They are ordered to do cooking and cleaning. D．They are a small portion of the prison population.