阅读下列短文，根据短文内容，从短文后各题所给的A、B、C、D四个选项中，选择最佳选项。

                                                                                       Bags of Love

      Last year, I worked in a middle school near my mother's house, and I stayed with her for a month. During that time, I helped her do some

 housework and buy some food.

      After the first week, I noticed that the food was eaten up very quickly. Then I began keeping an eye on my mum. To my surprise, I found

that she would put some of the food into a paper bag and go out with it at about nine every morning. And finally, I decided to follow her. I saw her taking the food to the street children. She would also spend a lot of time talking and playing with them.

      One day, I talked to a neighbour and found out that my mum was well-known in the area. The children were very friendly with her and even thought of her as their own mother. Then it hit me – why wouldn't she want to tell me about it? Was she worried that I would stop buying food if I found out?

  When my mum got home, I gave her a big hug (拥抱). I told her she didn't need to keep it a secret from me. And she told me something about the children. Some of them lived with an old lady in a small house. Others slept on the street. For years, she was helping the poor street children by giving them food. After she told me everything, I was so moved by how selfless (无私的) she was. She helped others in need. As her son, I was so proud of my mum.

      I continued to buy food for my mum after that. But I always added one more bag for her other children.

我国的历史是由整个中华民族共同创造的。在其发展长河中，出现了许多由少数民族建立的政权，其中第一个统一全国的政权是由哪个少数民族建立的（    ）

诗文填空。
① 子曰：“              ，思而不学则殆。”（《论语•为政》）
②子在川上曰：“              ，不舍昼夜。”（《论语•子罕》）
③潮平两岸阔，              。（王湾《次北固山下》）
④              ，小桥流水人家，古道西风瘦马。（马致远《天净沙•秋思》）
⑤ 李商隐在《夜雨寄北》中想象将来与友人欢聚的情景，表达渴望与友人早日相见的真挚而深厚的感情的诗句是“              ，              ”。
⑥“诗仙”李白，在游山玩水中飘逸洒脱而又放旷不羁，但他诗中往往又愁情满怀。请写出李白诗中与“愁”有关的诗句：              ，              。