You might as well expect a river to flow backward ____ us carrying out the plan.
Our bad living habits will destroy the earth. Only by changingwe live can we save the earth.
His suggestion made me angry, but.
With her eyesthe work attentively, she didn't know what was happening outside.
—What happened to the young trees we planted? —The treeswell, but I didn't water them.
—Has your son come back from abroad for the winter vacation? —Yes. But he stayed at home for only a week. Now heback to college.