more energy to my study instead of being crazy about Internet games I would be sitting i

问题补充：

more energy to my study instead of being crazy about Internet games, I would be sitting in a comfortable office now.

A. If I devoted

B. Had I devoted

C. Would I be devoted

D. Should I be devoted

答案：

A. If I devoted

(答案→)B. Had I devoted

C. Would I be devoted

D. Should I be devoted

解析：考查虚拟语气。本句是混合虚拟语气。主句与现在是相反，从句与过去是相反。故用过去完成时，因为从句中含有had，故可以将if去掉，把had提到前面来。