2 . Hearing the exciting news, the students couldn’t help a________ (鼓掌). (根据中英文提示单词拼写)

3 . You can easily contribute to __________ (reduce) the problem of air pollution by only using a bike to near places when it is absolutely necessary. (所给词的适当形式填空)

4 . 每个人都应当为保护环境做贡献。(make contributions to)(汉译英)

5 . He knows he should spend more time __________ (enjoy) real life. (所给词的适当形式填空)

6 . They enjoy playing football in the playground, as well as __________ (sing) songs. (所给词的适当形式填空)

7 . I find __________ (wait) for exam results stressful. (所给词的适当形式填空)

8 . My mum keeps __________ (tell) me to go out with my school friends instead. (所给词的适当形式填空)

9 . After g________ from university, he followed his heart and went to teach in a small village. (根据首字母单词拼写)

10 . She started to devote her energy ______ rather than performing.

A．to teach

B．to teaching

C．in teaching

D．teach