Give me an undisturbed hour and I’ll see the work Tom ___ unfinished.

A．will leave

B．is leaving

C．has left

D．had left

杨家将故事讲述了“澶渊之盟”订立前，我国哪两个 * * 之间的争战[ ]

A．北宋与辽

B．北宋与金

C．南宋与西夏

D．南宋与金