请回答下列问题：

    Jay Zhou is a student from Number 2 Middle School, who has many hobbies. He likes reading very much. In order to read more English novels, he has taken ____ in different reading activities. The novels he has read add ____ to at least 30. Many of the novels he has read ____ (base) on real people and events. Through reading, he can not only improve his knowledge of English, but also feel life is so happy. He says that so many English novels are worth ____ (read) that he will never be ____ (concern) about whether his future life will be boring. He also likes traveling. After ____ (graduate), he will travel in an English speaking country, making good use ____ his English. He hopes to speak English fluently as ____ he were a native speaker. Although he is devoted to ____ (learn) English，he hopes he ____ (admit) to a university where he can study science instead of arts.

如图漫画主要启示我们，在“行为前”要（    ）

下列物质中属于复合肥料的是（　　）

A $\underset{①}{\overset{C{l}_2,光照}{\to }}$   （一氯环己烷） $\stackrel{②}{\to }$   $\underset{③}{\overset{B{r}_2的CC{l}_4溶液}{\to }}$  B $\stackrel{④}{\to }$