You can’t imagine what difficulty we had_______ home in the snowstorm.
. The government is cautious because they are afraid that a new policy on taxation would ______the political balance of the country.
The American Foundation for the Blind has been trying to figure out how to make public libraries __________to blind readers .
Since Shanghai won the right to host the World Expo, over half a million people have volunteered to ___________in all the Shanghai Expo projects .
If you don’t resist smoking heavily like that , you will have to suffer the _______sooner or later .
Young men should constantly _________their own state of mind so as to adapt to the circumstances in which fierce competition is going on .