围绕主题，完成下面的思维导图。 A. speak loudly in the reading room B. good manners C. laugh at others when they need help D. listen carefully in class E. bad manners F. give a seat to the old man on the bus G. often say “please” and “excuse me” H. throw things out of the window I. wait in line at the supermarket J. cross the road when the traffic light is red
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