单选题 You did tell me what to do. If only I ______ your advice!
A. would take B. took C. have taken D. had taken

【正确答案】 D
【答案解析】[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。