1 . Taiwan is a part of China, ________ is known to all.（用适当的词填空）

2 . The lab in________ they worked has poor air quality. （用适当的词填空）

3 . ____________(我上火车的那一刻), I’m surrounded by Shanxi accents. (根据汉语提示完成句子)

4 . You’d better take an umbrella _____________(以防下雨). (根据汉语提示完成句子)

5 . ________________ (一……就) I got off the train, I saw my parents waiting expectantly on the platform.(根据汉语提示补全句子)

6 . In front of the classrooms, there was a playground ________ got dusty on windy days and muddy on rainy days. （用适当的词填空）

7 . He was only 1.6 metres tall, ________ made him the shortest player ever in the NBA.（用适当的词填空）

8 . I was still tied to the barrel, and the waves soon carried me to an area ________ the other fishermen were. (用适当的词填空)

9 . I have a dream that my four little children will one day live in a nation ________ they will not be judged by the colour of their skin but by the content of their character. (用适当的词填空)

10 . 无论我们过什么样的生活方式，都必须保护我们居住的星球。(no matter what...) (汉译英)