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    ---Have you found your book yet? ---No. I’m not sure I could have left it. A. whether B. where C. when D. why 【查看更多】

     

    题目列表(包括答案和解析)

    ---Have you found your book yet?

    ---No. I’m not sure _____ I could have left it.

      A. whether          B. where          C. when               D. why

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    --Have you found your book yet?

      --- No, I’m not sure where I________ it?

      A. leave   B. had left     C. could have left     D. was to leave.

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     ---Have you found your book yet?

       ---No. I’m not sure where I ___it.

       A. leave    B. had left    C. could have left   D. was to leave

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    ---Have you found your book yet?

      --- No, I’m not sure where I________it?

      A. leave   B. had left     C. could have left     D. was to leave.

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    ---Have you found your book yet?

    --- No. I’m not sure where I         it.

    A．leave        B．had left     C．could have left         D．was to leave

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