1 . While the rest of the team were pushing eastwards from a general area ________had been searched, Bell had a feeling that the boy would be found in a westerly direction. (用适当的词填空)

2 . On the National Day of one year, we went to the lake to set off fireworks. My mother’s house was far away from the spot ________ we would light the fireworks. So we thought the noise might not scare the dogs. (用适当的词填空)

3 . Tiger sharks like to live in waters ______ humans usually swim, so the chances of an encounter are much greater. （用适当的词填空）

4 . They found that those ______ had changed their diet to include more red meat were around 10% more likely to die during the study. (用适当的词填空)

5 . The classical gardens of Suzhou, Jiangsu province, date back to the 6th century ______ the city was founded as the capital of the Wu Kingdom. (用适当的词填空)

6 . In a system ________ every decision is made on the basis of tradition alone, it may be difficult to achieve progress. (用适当的词填空)

7 . This is the second school ________ I used to work at, and many students there still have contact with me. (用适当的词填空)

8 . There had been a previous occasion________ Harry, expected to be punished by the professor, had instead been appointed to the Quidditch team. (用适当的词填空)

9 . After school, there were many clubs to join and the one ________   attracted me most was the Rugby Club. (用适当的词填空)

10 . They’ve learned from bitter experience that the only thing ______ happens when you make a fool of others is that you make a fool of yourself. (用适当的词填空)