问题
单项选择题
You did tell me what to do. If only I （） your advice!
A. would take
B. took
C. have taken
D. had taken
答案
参考答案：D
解析：
if only接虚拟条件句，意为“要是……就好了”。本句谈及的是过去的事，因此用had taken。注意不要将if only与only if混淆，only if接真实条件句，且主句采用倒装结构。