The ground is with leaves.
A. coving; falling
B. covered; falling
C. covered; fallen
D. covering; fallen
网友回答
A. coving; falling
B. covered; falling
C. covered; fallen
D. covering; fallen
解析： be covered with表示“被……覆盖”，falling leaves是“正在落下的叶子”；fallen leaves是“落在地上的叶子”。