完形填空

　　I have a good name, Henry. I am fourteen years old. I1England. I’d like2you my dream in the future. I will be a doctor3ten years. I will work in London4it is a beautiful city. It’s our capital. As a doctor, I will meet all kinds of sick people. But I’m glad5help people. I will live in a big house6my family because I don’t like7alone. I will have a car, a nice car. 8I can’t drive now. Because I’m too young, my mother9allow(允许)me to drive now. I will have a robot. The robot will help me10my housework. I hope my dream will come true one day.

放学路上，小蓉捡到一个装有证件和大量现金的钱包。小蓉把钱包带回了家，准备第二天交给老师。妈妈知道后对小蓉说：如果你是失主，你是不是很想尽快找到钱包？小蓉妈妈的这种想法就是我们通常所说的（     ）

下列选项中，不属于未来的理想能源必须满足的条件的是（  ）

已知S_n为等差数列{a_n}的前n项和，S₆=51，a₅=13．