单选题 When she (arrived), I was (pretty) fed up, because I (waited) (since) eight o'clock.
【正确答案】 C
【答案解析】waited改为have been waiting/have waited。意为：我从8点一直等到她出现。应该用表示一直等到现在的时态。用waited则表示等的动作早已结束。