SHE TURNED THE RADIO AT 7

61. - DE THI THU DAI HOC MON TIENG ANH VA DAP AN
DE THI THU DAI HOC MON TIENG ANH VA DAP AN
61. She turned the radio at 7:30. She was still listening to it when hermother came home at 9:00.A. She has been listening to the radio at 7:30.B. She had been listening to the radio since 7:30. C. She has been listening to the radio after 7:30.D. She has been listening to the radio by 7:30.