Trắc nghiệm Chuyên đề 5: Writing có đáp án (Phần 2)
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Although she was busy, she managed to find the time to proofread for me. Busy

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Although she was busy, she managed to find the time to proofread for me.

      Busy      

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Giải thích

Busy as she was, she managed to find the time to proofread for me.