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Our country______a lot in the last fifty years该怎么填?A.changed B.changes C.has changedHe______[have] to walk to school every day该怎么填？
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Our country______a lot in the last fifty years该怎么填?A.changed B.changes C.has changed
He______[have] to walk to school every day该怎么填？
He______[have] to walk to school every day该怎么填？
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Our country__has changed____a lot in the last fifty years
He has to walk to school every day
He has to walk to school every day
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