It's snowing_____outside.Look,the ground is covered___thick snowIt's snowing_____outside.Look,the ground is covered___thick snow.A.heavily,with B.heavily,by C.hard,by D.strongly,by但我觉得A,B都可以,

It's snowing_____outside.Look,the ground is covered___thick snowIt's snowing_____outside.Look,the ground is covered___thick snow.A.heavily,with B.heavily,by C.hard,by D.strongly,by但我觉得A,B都可以,
It's snowing_____outside.Look,the ground is covered___thick snow
It's snowing_____outside.Look,the ground is covered___thick snow.
A.heavily,with B.heavily,by C.hard,by D.strongly,by
但我觉得A,B都可以,

It's snowing_____outside.Look,the ground is covered___thick snowIt's snowing_____outside.Look,the ground is covered___thick snow.A.heavily,with B.heavily,by C.hard,by D.strongly,by但我觉得A,B都可以,
只能选A,is covered with.用.来覆盖.the book is covered with beautiful pictures.