第二节: 单项填空(共15题;每小题1分,满分15分) 从a、b、c、d四个选项中,选出可以填入空白处的最佳答案, 并在答题卡上将该项涂黑。 6. the conference had been held last week in the y city to discuss the effects of tourism _______ the wild life in the area. a. in b. on c. at d. with 7. dalian is _______ most attractive coastal city and how i wish i would go there for _______ second time. a. a; a b. the; a c. the; the d. the; a 8. it’s quite a long time _______ yao ming was injured, but it won’t be long _______ he returns to the court. a. since; before b. after; when c. before; since d. that; when 9. -- can i smoke here?