1 . Up to now lots of tests ________ (prove) that the system works.   (所给词的适当形式填空)

2 . This is the reason ________ he gave us. （用适当的词填空）

3 . The waves carried me to an area ________ was near the fishermen. （用适当的词填空）

4 . She studied Chinese medicine for two and a half years with expects in the field from ________ she gained a deep knowledge. （用适当的词填空）

6 . My two brothers and I were coming back from the islands ______ we often risked going and got more fish than others.（用适当的词填空）

7 . "Are there any cheaper ones?"
Lily asked ______ any cheaper ones.

8 . 我认为我们应该号召人们保护环境。(call on)（汉译英）
_________________________________________________________________

9 . 受伤严重的人们被立即送往医院。
People ________________________ were taken to hospital at once.

10 . 那是一个科技快速发展的时代。
________________________ science and technology developed quickly.