1 . The Chinese hetb qinghao, from_________qinghaosu comes, has been used to cure diseases for almost 2,000 years. (用适当的词填空)

3 . The Students’ Union is like a huge stage, ___________ everyone spares no effort to achieve their dreams. (用适当的词填空)

4 . She was taking the food to the refugee camp, in _________she distributed it to the children. (用适当的词填空)

5 . 事实上，你在荧幕上看到的电影是大量艰苦工作的产物，其中大部分工作发生在幕后。
Actually, the film you see on the screen is the product of a huge amount of hard work, most of________ takes place________ the scene.

6 . With graduation day drawing near, the students in Class 5 were anxiously preparing for their final exams, and none of ________ wanted to play computer games. （用适当的词填空）

9 . It has been confirmed that 4 people are dead and dozens of people are injured, 5 of _________ are in a critical condition. (用适当的词填空)

10 . The fire has also left dozens of people injured, 5 of ________ are in a critical condition. (用适当的词填空)