阅读下列各小题，根据汉语提示，用句末括号内的英语单词完成句子。
1. when you deal with this chemical,as it will explode when __________________.  (expose)
处理这种化学物质时要小心,因为它暴露在阳光下时会爆炸.
2. Nowadays young people just can't live without the Internet, _______________for whatever
information they need. (depend)
    如今的年轻人离开因特网就无法生活,他们依靠它获取自己所需信息.
3. A hobby is what you never get tired of - ____________________, the more fun you will have.
(devote)
爱好是不会让你感到厌倦的- 你投入的时间越多,获得的乐趣越多..
4. So______________________________ on the phone that we knew there would be good news.
(voice)
他的声音在电话中听起来如此地激动,以至于我们都知道会有好消息.
5. Part of the reason why he is absent is , I think, that he __________________the meeting.(inform)
我想他缺席会议的部分原因是他可能没被通知.
6. ___________________________________, professor Smith went straight to the laboratory to
continue his experiments.(have)
理完发后,Smith 教授径直到了实验室,继续他的实验.
7. Whatever you have picked up, you should give it back to_____________________.(belong)
无论你捡到什么东西,你都应该物归原主.
8. Her father gave her advice on learning English _________________________________as much
as possible.(employ)
    她的父亲建议她学英语时尽可能多用它.
9. We are designing an experiment to find out if __________________________________ when it
is cold.(break)
我们正在设计一个实验,想弄清楚当天冷时,玻璃是否更容易破裂.
10. _____________________ she is not so cheerful as she used to be?(why)
她没有以前那么高兴究竟是为什么呢?