QUESTIONS 71 - 75. MARK THE LETTER A, B, C, OR D TO INDICATE THE SENTE...

71. Without skilful surgery he would not have survived the operation. A. Had it been for skilful surgery he would not have survived the operation. B. He wouldn't have survived the operation if he hadn't had skilful surgery. C. But for skilful surgery he would not have survived the operation. D. With skilful surgery he would have survived the operation.