the answer is B,tell me why please

来源：学生作业帮编辑：作业帮分类：英语作业时间：2024/05/19 12:14:20

the answer is B,tell me why please
This is an illness that can result in totle blindness if( )
A.to leave untreating B.left untreated C.leaving untreating D.is left untreated

正确答案是B.
illness“病”应该是被treated“处置”或untreated,由此已经排除掉了A和C,而选项D的本意是if后面连接一个从句,但错在从句少了主语it（指前面的an illness）,如果加上it,则可以把B理解为D的简化版.

the answer is B,tell me why please the answer is B,tell me why the answer is B,tell me why.thanks the answer is A,tell me why the answer is B,tell my why the answer is A ,tell me why why not use B or C who can tell me why the right answer is the answer is A,tell me why and translate it the answer is A ,tell me why and translate it the answer is D,tell me why ,thanks PMP,Tell me the answer and why would you please tell me the answer?