阅读下列各小题，根据括号内的汉语提示，用句末括号内的英语单词或其适当的形式完成句子，使句子完整通顺。
小题1:It’s our duty to.(尽我们最大的努力去帮助残疾人)（try）
小题2:They closed all the windows(为了房间更加保暖).（order）
小题3:---Why don’t you go hiking in the mountains at weekends?
---(我害怕蛇) when I am in the forest. (afraid)
小题4:---(你是怎样了解到)the news? (know)
---Teacher told me by sending a message on the mobile phone.
小题5:---(你的哥哥长得是什么样的)？
---He is of medium build, and he has short hair. ( look )
小题6:---Do you often listen to the music while you are doing housework?
--- Yes, it（使我放松）when I am busy. (make)
小题7:---How long have you been an English teacher?
---(自从我放弃了医院的工作)in 2000. (give)