材料一：德国作曲家贝多芬，一生遭受了数不清的磨难。但他不甘沉沦，振作起来，终于创作出《命运交响曲》，获得极大成功。

材料二：某市一重点高中学生填报高考升学志愿时，前面两个志愿填报了我国的两所著名大学，在第三志愿上却填写了长江大桥，即如果考不上这两所著名大学，他将从长江大桥上跳下葬身鱼腹。

先通读下面的短文，掌握其大意，然后从A、B、C、D四个选项中选择可以填入空白处的最佳答案．

    Online shopping is very easy for young people，but it's difficult for old people．Some Daigou shops，or buy-for-your shops,are1them much.

    Mr Li,a 64-years-you old man,is2his favourite CD in Daigou shop.He says,It's very convenient(方便的)to buy things online，but I can't 3the Internet．I'm lucky to find this buy-for-you shop，as I4to buy an opera CD．I am so happy to get5．From now on，I  6going to look for more things．”A manager of the shop says，“To meet(满足)the needs  7people，I start 8shop．”0ther people9find the large needs in Daigou shops．In many cities，such shops are opening their doors．

    Daigou shops are10for people to shop．

小亮和小明周六到距学校24km的滨湖湿地公园春游，小亮8：00从学校出发，骑自行车去湿地公园，小明8：30从学校出发，乘车沿相同路线去滨湖湿地公园，在同一直角坐标系中，小亮和小明的行进路程S（km）与时间t（时）的函数图象如图所示．根据图象得到结论，其中错误的是（　　）

Turn      the light.