根据短文内容，选择正确答案。
A
    One day, Mr. and Mrs. White went shopping by car. They stopped their car near a store. They bought a lot of things and they wanted to put them in their car. But Mr. White couldn't open the door of the car. “Let's ask a policeman for help.” said Mrs. White. They asked a policeman to help them. The policeman was very friendly to help them open the door of the car. Just then a man came up and shouted, “What are you doing with my car?” Mr. and Mrs. White took a look at the number of the car. It was not their car.

下列符号代表精子的染色体，A和a，B和b分别是两对同源染色体，下列哪四个精子来自同一个AaBb初级精母细胞（不考虑染色单体间的互换）（    ）

根据以下材料，选取角度，自拟题目，写一篇不少于800字的文章；文体不限，诗歌除外。

    一个人可以走得很快，但不可能走得很远，只有一群人才能走得更远。（非洲谚语）

    与众人一起前行是美好的。一个人孤独地跋涉更是珍贵的。

    你可敢在茫茫人群间，/离群索居，遗世独立，/漫不经心，安于孤寂，/像一朵无意吐芳的花，/冷视西风扇动的羽翼？（雪莱）

请根据你的理解，将省略的意思补充完整。
         一位小学生在作文中写道：“我希望老师像导游……而不像园丁，修剪掉我们不听话的枝丫，最终让我们长成了只会听话的植物。”
         我希望老师像导游，                                                  。

Let him _______ a rest. I think he must be tired after the long walk.