Every possible means ______ to prevent the air pollution, but the sky is still not clear.
They believe that the spirit remains with the body for three days; ________ someon always stays with the dead person.
When ______ why he walked in ______ permission,he just______at us and said nothing 。
Never_______ forget the days when _____together with you.
The soldier was ____of running away when the enemy attacked.
________ countries and areas have been seriously hit by the typhoon. Now people in the affected areas are ______food and fresh water.