The traffic slowed down because of the heavy snow in Yushu county, presenting a new __________ to the recovery from the earthquake.
I never expected you to __________ at the meeting. Ithought you were abroad.
All the __________expressed their opinions on the __________ of the world.
In the face of __________ failure, it is the most important to keep up __________ good state of mind.
In front of our house __________ we used to swim.
—Whywas Professor Wang unhappy recently? —Because the valuable watch __________ to him waslost.