阅读下面短文，从短文后所给的A、B、C、D四个选项中选出能填入相应空白处的最佳选项。

    My name is Brad. I'm 1 Sichuan. I'm a(n) 2 monkey and I am only one year old. I like eating 3 and bananas are my favorites. I like forests(森林),but now I live in a 4 . I am in a big cage(笼子) 5 other monkeys. People like me and often give me some fruist to eat. 6 I'm not really happy. 7? Because I can't live with my parents and I can't climb trees(爬树) here. Every day, I get up in the cage. I eat food in the cage. I 8 and relax in the cage. I really want to 9 my parents and climb trees in the forests. Dear people, animals are your 10. We live in the same world. Please let us live in the forests, not in the cages.

11-9=____ 12-9=____ 16-9=____

2+9=____ 3+9=____ 7+9=____

1956年，***在探究斯大林犯错误的原因时说，最重要的是独立思考，把马克思列宁主义与实践相结合，“现在是社会主义革命和建设时期，我们要进行第二次结合，找出在中国进行社会主义革命和建设的正确道路”。在“第二次结合”时期，***吸取苏联建设的教训强调（    ）