With ____ leaves ____ in the earth every year, the soil becomes richer and richer.
#95286
A
falling; burying
B
fallen; buried
C
fallen; burying
D
falling; buried
推荐题目
_______ his studies, he started travelling in China.
#92636
A
As soon as finish
B
As soon as finishing
C
Upon finishing
D
Upon finish
The picture _______ on the wall is painted by my nephew. 
#98609
A
having hung
B
hanging
C
hangs
D
being hung