The office building _____ the classrooms. A.behind B.behinds C.is behind
The Yangzhi River is one of __________ in the world.
—How can we protect ourselves ________ the earthquake? —We should stay calm first.
Da Shan is _________ at Chinese. He can speak Chinese very _________.
—My mother has been ill for several days. —____________
He hardly goes to school by car, _________ he?