30.With leaves in the earth every year, the soil becomes richer and richer. A.falling; burying B.fallen; buried C.fallen; burying D.falling; buried 查看更多

 

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With ____ leaves ____ in the earth every year, the soil becomes richer and richer.

A.falling; buryingB.fallen; buried
C.fallen; buryingD.falling; buried

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With ________ leaves ________ in the earth every year, the soil becomes richer and richer.

[  ]

A.falling; burying

B.fallen; buried

C.fallen; burying

D.falling; buried

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