一Howlonghaveyoubeeninthisoffice?一Justafewminutes．I

问题详情：

一How long have you been in this office?

一Just a few minutes．I ______ here together with my cousin．

A．have walked                             B．had walked

C．have been walking                    D．walked

【回答】

知识点：一般过去时及其被动式

题型：选择题