If only he quietly as the doctor instructed, he would not suffer so much now.
A. lies
B. lay
C. had lain
D. should lie
网友回答
A. lies
B. lay
C. had lain
D. should lie
解析：if only 意为“要是……就好了”，其后的句子谓语要用虚拟语气，同时根据 as the doctor instructed 中的过去时态可知从句是与过去事实相反，故选 C.