rain forests cover about 6% of the earth's land surface.(改为同意句）6% of the earth's land surface ( )( )( )rain forests
问题描述：
rain forests cover about 6% of the earth's land surface.(改为同意句）
6% of the earth's land surface ( )( )( )rain forests
答
About 6% of the Earth's land surface is covered by rain forests.
答
6% of the earth's land surface is covered by rain forests.