.The traffic slowed down because of the heavy snow in Yushu county, presenting a new __________ to the recovery from the earthquake.

Though__ __ came that he was completely defeated, he didn't lose ______.

The members of the club wouldn't run a _____ in entrusting（委托） the organization to an unreliable person.

The old man gave ______ on behalf of an accused person.

The first question was difficult , but ___ were quite easy.