1．The UN has ______(催促) the two countries to solve the problem in a peaceful way.
2．When mother saw my face, she knew ______(立即) that something was wrong.
3．The ______(到达) of Flight 227 was delayed by two hours.
4．In return for our consent, he ______(发誓) he would give it up the day after he won the election.
5．Her ______(勇气) in the face of death is an example to us all.
