活学巧用
The ________ (原因) why he died young was that he didn't pay attention to his health.
Carelessness is often the ________( 原因) of fires.
What ________ (导致) your mother to do so?
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活学巧用
The ________ (原因) why he died young was that he didn't pay attention to his health.
Carelessness is often the ________( 原因) of fires.
What ________ (导致) your mother to do so?
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