We would have called a taxi yesterday if Harold ______us a ride home.

A．didn't offer

B．wouldn't offer

C．hasn't offered

D．hadn't offered

监理工程师在收到承包单位的隐蔽工程检验申请后，首先对质量证明资料进行审查，并在合同规定的时间内到现场检查，此时，（）应随同一起到现场。

A．设计单位代表

B．项目技术负责人

C．建设单位代表

D．承包方专职质检员和相关施工人员