1 . He began his career as a head football coach in 1969, _______ he was elected to lead the Oakland Raiders. (用适当的词填空)

2 . The last time they went to Scotland was in May, ___________ the weather was fine.(用适当的词填空)

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

4 . Next month, ____________ I will spend my summer vacation in the countryside, is approaching. (用适当的词填空)

5 . They came to China in the 1970s, ____________ China was not open to the outside world. (用适当的词填空)

6 . I didn’t experience such an adventure until the fifth grade, ________ I was an innocent child then. (用适当的词填空)

7 . We will postpone the picnic in the park until next week, __________ the weather may be better. (用适当的词填空)

8 . We will put off the picnic in the park until next week, ____________.  
我们将把在公园的野餐推迟到下周，届时天气可能会更好。