单项选择题
A．he was too old to see who did it B．the boys ran too fast for him to catch C．it was impossible for him to be on guard all the time D．he was too kind to beat the boys
A．they wanted to do what they were told not to do B．the notice was closer to the path C．they hated to see the notice D．the notice was in the way
A．to tell the children not to throw stones at the notice B．to warn the boys not to throw stones C．to attract the boys to throw stones at the notice D．to warn them whoever threw stones would be punished