Look at the terrible situation I am in! If only Iyour advice.A. followB. would followC. h

问题补充：

Look at the terrible situation I am in! If only Iyour advice.

A. follow

B. would follow

C. had followed

D. have followed

答案：

A. follow

B. would follow

(答案→)C. had followed

D. have followed

解析：题目中的第一句话表示的是现在真实的情况，而第二句话中所要表达的是应该做但事实上没有做的事，这种情况导致第一句话中真实情况的发生，故if only条件句假设的是过去一种情况，因此应该用had+过去分词，所以正确答案是C。