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—How long have you been in this office?

—Just a few minutes. My cousins__________here together with me.

A. have walked              B. had walked

C. walked                   D. have been walking

 —How long have you been in this office?

—Just a few minutes. My cousins____________here together with me.

A. have walked        B. had walked

C. walked            D. have been walking

2. —How long have you been in this office?

—Just a few minutes. My cousins_______here together with me.

A. have walked       B. had walked

C. walked            D. have been walking

—How long have you been in this office?

—Just a few minutes. My cousins__________ here together with me.

A. have walked       B. had walked  C. walked            D. have been walking

33．----How long have you been in this office?

----Just a few minutes. My cousins_______here together with me.

       A．have walked    B．had walked　　      C．walked              D．have been walking