Had you joined the caht room ten minutes ago, you would have known what we _______about then.

A. had talked          B. have talked       C. talk                 D. were talking

Had you joined the caht room ten minutes ago, you would have known what we _______about then.

A. had talked          B. have talked       C. talk                 D. were talking

Had you joined the caht room ten minutes ago, you would have known what we _______about then.

A. had talked          B. have talked       C. talk                 D. were talking

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 Had you joined the caht room ten minutes ago, you would have known what we _______about then.

A. had talked          B. have talked       C. talk                 D. were talking

 Had you joined the caht room ten minutes ago, you would have known what we _______about then.

A. had talked          B. have talked       C. talk                 D. were talking