2 . The government is committed to solving every problem that stands __________(妨碍；挡道), from human rights to the environment. (根据汉语提示完成句子)

3 . At that very moment, somewhere __________(在远处) a wolf let out a deep howl. (根据汉语提示完成句子)

4 . ______by an over 1,600-year-old text about preparing qinghao extract with cold water, Tu redesigned the experiments and tried extracting the herb ______ in order not to damage its effective part.
据一本1600多年前的古籍记载，古人通过冷水制备青蒿提取物，受此启发，屠呦呦重新设计了实验，为了不破坏其（抗疟的） 有效成分，她尝试在低温下提取青蒿。

5 . 由于天气不好，航班被取消了。
The flight was cancelled _________   _________ bad weather.

6 . 我们需要一些新人来为这个项目注入活力。
We need some new people to _________   _________   _________ this project.

7 . 生产成本不断提高相应地会引起价格上涨。
Increasing production costs will, __________   _________, lead to higher prices.

8 . After a day's drive, John found a room ______ (出租) and put himself up for a night. (根据汉语提示完成句子)

9 . I won’t buy this floor cleaning robot unless they reduce the price ________ 20%. （用适当的词填空）

10 . Sometimes, the stories ________________ (幕后) are juicier than what we see on the screen. （根据汉语提示完成句子）