—How long have you been in this office?—Just a few minutes. My cousinshere together with m

问题补充：

—How long have you been in this office?

—Just a few minutes. My cousinshere together with me.A. have walked B. had walkedC. walkedD. have been walking

答案：

本题主要考查动词时态交际中的应用。根据here together with me 可知，是表弟来里的行为发生在过去某一时间，因此本题的正确答案选C。