关于fourthsofthesurfaceo的百科

• Three­fourthsofthesurfaceoftheearth

• 问题详情：Three­fourthsofthesurfaceoftheearth________coveredbywater.A．is            B．are                          C．were              D．hasbeen【回答】A 知识点：一般现在时及其被动式题型：选择题...
• 2019-09-1211766