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
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When the old man came to life, he found himself        by some docters and nurses.
#91530
A
surrounding
B
be surrounded
C
be surrounding
D
surrounded
 Sandstorms in Asia seem _____ in recent years as a result of desertification.
#93442
A
to increase
B
to have increased
C
having increased
D
increasing