27、Never before__________ such a smoke in the room.

A. have I read      B. did I read         C. do I read   D. am I reading

27、A

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Never before__________ such a smoke in the room.

A. have I read      B. did I read         C. do I read   D. am I reading

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科目：高中英語 來源： 題型：

Never before ____ such a smoke in the room.?

A.have I read                      B. did I read?                     C.do I read                  D. am I reading?

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