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 |
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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 |