She turned the radio on at 7.30. She was still listening to it when her mother came

50/50

Mark the letter A, B, C or D on your answer sheet to indicate the sentence that best combines each pair of sentences in the following questions.

She turned the radio on at 7.30. She was still listening to it when her mother came home at 9.00.

She has been listening to the radio at 7.30

She had been listening to the radio since 7.30

She has been listening to the radio after 7.30

She had been listening to the radio by 7.30

Giải thích

Ở đây đang dùng thì quá khứ => thì hiện tại ở đáp án A và C loại

7.30 là một thời điểm trong quá khứ, một mốc thời gian trong quá khứ => sử dụng since

=> Đáp án B