Without skillful surgery, he would not have surviv...

Câu hỏi: Without skillful surgery, he would not have survived the operation.   

A Had it been for skillful surgery he would not have survived the operation.   

B He wouldn't have survived the operation if he hadn't had skillful surgery. 

C  But for skillful surgery he would not have survived the operation. 

D  With skillful surgery he would have survived the operation.