We go to school from Monday to Friday. We have four classes in the____and three in the afternoon. We have____things to do after class. On Monday and____afternoon we have P.E. On Wednesday morning some of us have a singing class. On____morning some have a drawing class. On Friday____we practice speaking English.

北美洲和南美洲的分界线 （    ）

“喂，这只鸡腿给你吧，我不想吃了。”“我不要。咱自己挣钱哩，买得起。谢谢啊！”从这段中学生与农民工的对话中，你懂得了（  ）
①做人要自尊，自尊的人知荣辱，讲自爱               ②帮助他人，首先要做到尊重他人
③好心不一定被理解，以后就不去帮助人了           ④帮助他人就是为了获得他人的尊重