The North Pole is all the white snow here and there all the year round.A. full ofB. fill

问题补充：

The North Pole is all the white snow here and there all the year round.

A. full of

B. fill with

C. covered by

D. covered with

答案：

A. full of

B. fill with

C. covered by

(答案→)D. covered with

解析：这里的be covered with 是系表结构，所以选D。