完成句子。 1. She has a lot of experience _____ (应对) teenagers' problems. 2. What would you do if you burned yo urself _____ (偶然地). 3. The window is broken. Please _____ (查明) who did that. 4. You should _____ your teachers or parents _____ (向……征求意见). 5. —Do you know when the book _____ (出版)? —Last year, I think.