I heard her_______ the piano in the nex room at 10 last night A played B to play C playing D plays

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Iheardher_______thepianointhenexroomat10lastnightAplayedBtoplayCplayingDplaysIheardher_______thepian

I heard her_______ the piano in the nex room at 10 last night A played B to play C playing D plays
I heard her_______ the piano in the nex room at 10 last night A played B to play C playing D plays

I heard her_______ the piano in the nex room at 10 last night A played B to play C playing D plays
C playing
因为at 10 last night
说明在那个时间点正听见

C