Our food and water _____, we’d better control our amounts, if not, we all can’t survive before the rescue comes.
Every possible means _______to prevent the air pollution, but the sky is still not clear.
The doctor had almost lost hope at one point, but the patient finally______.
All the neighbors admire this family_______ the parents are treating their child like a friend.
—Were you all frightened at the sound of the fire alarm?— No. Everyone stayed _______ and obeyed the police.
—_______when has the country been open to international trade?— 1978,I suppose.