I didn’t find his office. If only Ihis address!A. had takenB. have takenC. tookD. would ta

问题补充：

I didn’t find his office. If only Ihis address!

A. had taken

B. have taken

C. took

D. would take

答案：

(答案→)A. had taken

B. have taken

C. took

D. would take

解析：考察虚拟语气。本题中的if only表示“要是….就好了”；该词后面的从句要使用虚拟语气，如果与现在相反，使用一般过去时；与过去相反，用过去完成时；与将来相反，用过去将来时。句意：我没有找到他的办公室，要是我把他的地址带来就好了。根据句意说明是对过去情况的虚拟，故A正确。