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 —___John come here tonight?
—I’m not sure, but he ______ stay at home.
A.May, mightB.Can, mustC.Must, mightD.Can, migh
D
can、 may、might都可用来表达可能性,但may、might不用于疑问句,且might表示成为现实的可能性更小。由I’m not sure可知第二空应用might。故选D。
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