(2013·河北普通高中高三质量监测)Sitting at the corner of the meeting room, he looked sad because there were so many problems ________.

______ yourself, you should never put convenience before safety.

The children ___when they heard the inspiring news.

 He looked around and caught a man ______ his hand into the pocket of a passenger. 

（2014年(春)重庆市高三考前冲刺测试卷）5.  Traditionally __ as one of the safest planes, the Boeing 777's reputation has been damaged by the second crash in less than a year.