Bộ đề ôn thi vào 10 môn Tiếng anh năm 2023 - 2024 mới nhất- Practice 9

By the time John arrived, all his friends _____________. A. have left            B. would leave       C. had left              D. were leaving

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Mark the letter A, B, C, or D to indicate the most suitable answer to each of the following questions.

By the time John arrived, all his friends _____________.

have left

would leave

had left

were leaving

Giải thích

Chọn đáp án C