1 . 除了学业，孩子在业余时间还必须上艺术，音乐和体育课
________ ________ school work, the children also have to take arts, music and sports classes in their free time.

2 . 为了谋生，有些人在唐人街开商店、开餐馆。
In order to   ________ ________ ________ , some opened up shops and restaurants in Chinatown.

3 . 小心不要被绊倒这些树根绊倒，它们在树叶下面很难被看见
Be careful not to ________ ________ these roots, which are difficult to see under all these leaves.

4 . 我突然想起在那个年代，一个女子去学医是多么困难啊。
Suddenly it________ ________ me how difficult it was for a woman to get medical training at that time.

7 . 北京位于中国的东北部，是中国最大的城市之一。
________ ________ the northeast of China, Beijing is one of the largest cities in China.

8 . 长江是世界上最长的河流之一。
The Yangtze River is __________________  rivers in the world.