The girl looked at me with a _______expression. Maybe the problem was quite _________.

My mother was angry with me because I____________ last night .

Emergency line operators must always ________calm and make sure that they get all the information they need to send help.

(2013·高考辽宁卷)At no time ________the rules of the game.It was unfair to punish them.

Is it the pigeon to______ he attached the message ______ carried the news there?