________isobvioustha的精选

问题详情：________isobviousthateveryoneisconcernedaboutthepresentsituationofourenvironment.A．There B．This C．It D．What【回答】C[句意：很明显大家都在关注我们目前的环境状况。It作形式主语。]知识点：代词题型：选择...