– Were you late for work yesterday morning? – Yes. By the time I got to the bus stop the

问题补充：

– Were you late for work yesterday morning?

– Yes. By the time I got to the bus stop, the early bus .

A. has already left B. is already left C. had already left

答案：

解析：by the time,表示到···为止，后接一般过去时，主句为过去完成时，故选C