Which of the following contributes to long waits at major airports ?

(单选题)He had lived in this city ______ I moved here. But I hear th (单选题)Mum, my shoes are ______. Can I have a new pair? (单选题)I’m sure that their team will ______ ours. (单选题)What’s six ______ seven? (单选题)The king ______ himself from a leaning tree. (单选题)Hearing his mother’s voice, the child couldn’t wait ______ o (单选题)Most sharks feed ______ fish and other animals. (单选题)What do you think ______ him change his mind? (单选题)She ______ a teacher, but now she is a doctor. (单选题)______ the old man spoke, ______ he became.