1 . His interest started a few years ago, ________ he was in college and studying wildlife science. (用适当的词填空)

2 . There is usually an interval between the first half and the second half of the football match, ________ (那时教练可以指导球员如何比赛)．(根据汉语提示完成句子)

3 . He came to public attention during the 1960 Rome Olympics, _______ he won the light heavyweight gold medal for the USA, _________(demonstrate) great talent and personality in the process. (用适当的词填空)(所给词的适当形式填空)

4 . There is evidence ________ acupuncture ________ (date) back to the Stone Age, ________ stone tools called bian were used to press areas of the body. (用适当的词填空) (所给词的适当形式填空)

5 . A major breakthrough in AI came in 1997, _________ Deep Blue, a chess-playing computers, beat the world chess champion Garry Kasparov. （用适当的词填空）

6 . where引导定语从句
When the train arrived at the station, they took a taxi to Lake Louise, ________________ (那里湛蓝的湖水异常美丽，令她们惊叹不已).（根据汉语提示补全句子）

7 . This temple was first built during the Qin Dynasty. (用定语从句合并/改写句子)
→The time ____________ was during Qin Dynasty.

8 . We will put off the picnic in the park until next week, ________ the weather may be better. (用适当的词填空)

10 . Linda walked through the door into the waiting area in the hospital, ________ there is always an atmosphere of boredom and tension.

A．when

B．that

C．which

D．where