we would have taken raincoats with us.A. Had we knownB. We had known itC. If we were kn

问题补充：

, we would have taken raincoats with us.

A. Had we known

B. We had known it

C. If we were known

D. If we know

答案：

(答案→)A. Had we known

B. We had known it

C. If we were known

D. If we know

解析：省略了if的虚拟条件句要倒装。此句是与过去事实相反的虚拟语气。