500+ câu trắc nghiệm tổng hợp Chia động từ Tiếng Anh có đáp án (Phần 2)

We cleaned up the room as soon as the guests________ A. Had been left

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We cleaned up the room as soon as the guests________

A. Had been left

Has left

Left

Were leaving

Giải thích

Chọn đáp án C