Look at the trouble I am in. If only I your advice.
A. followed
B. would follow
C. had followed
D. should follow
网友回答
A. followed
B. would follow
(答案→)C. had followed
D. should follow
解析：考查虚拟语气。If only（要是…就好了）的用法和I wish的用法是一样的。句意;看看我现在的麻烦。要是我采纳你的建议就好了，说明没有采纳你的建议是过去所发生的事情，故使用过去完成时表示对过去的虚拟。故C正确。