阅读下面短文, 在空白处填入1个适当的单词或括号内单词的正确形式.

Teenage life is full of adventures and challenges. Doing voluntary work is popular among some teenagers and extra-curricular activities 【小题1】 (prefer) by others, such as organizing debates, studying literature, dancing ballet and cleaning up the greenhouses. But more people sign up for advanced courses out of 【小题2】 (curious). Actually, some teenagers feel confused in their youth, and their behaviors are sometimes confusing. They think there is a generation gap between 【小题3】 (they) and adults, so experts are trying to find a suitable solution.

Johnson, 【小题4】 outgoing freshman, is so attracted to Chinese literature that he 【小题5】 (quit) his studies in Chicago and come to China. Obviously, with the help of his teacher, his Chinese has improved greatly and he can speak fluent Chinese 【小题6】 campus now. As 【小题7】 (schedule), he will graduate next year. 【小题8】 he is concentrating on is the ancient Chinese Literature and he is fascinated with Tang poetry. The topic of his research content is “the differences between Eastern and Western literature”. An editor that acts 【小题9】 (responsible) has recommended him 【小题10】 (read) some classical Chinese literature first. The recommendation means a lot to him.