Bộ 10 đề ôn thi học sinh giỏi Tiếng anh lớp 9 có đầy đủ đáp án (Đề 8)

Don’t bother me while I    A. am working     B. was working     C. will work      D. will have completed

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Don’t bother me while I___________.

am working

was working

will work

will have completed

Giải thích

Đáp án: A