Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions Luckily, by the time we got there, the painting____________.

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Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions

Luckily, by the time we got there, the painting____________.

didn't sell

hadn't sold

wasn't sold

hadn't been sold

Giải thích

Đáp án D

Cấu trúc: by the time + S + V (past)..., S + had + pp

"Thật may mắn, trước khi chúng tôi đến đó, bức tranh vẫn chưa được bán