-Did you lock the door? -No, I , but I forgot. A. should B. must have C. must D. should have 查看更多

 

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 —Did you lock the door? —No, I ____, but I forgot.
      A. should        B. must  have        C. must          D. should  have

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---Did you lock the door?
---No, I ____, but I forgot.
A. should        B. must  have        C. must          D. should  have

 

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