—Trees are our friends. We should ______ them. —I agree with you. A. protect B. forget C. leave
My brother and 1 in Yinchuan since 1997.
We have only one Earth. It’s our common _.
—Need I wash your car after repairing it?—Yes, that would be much _ .
—When will he leave for Shanghai?—As soon as he _ his work.
Tom’s mother is busy _____ breakfast for Tom.