Without that conversation between them, they would be able to avoid mistakes.
A. in no time
B. by all means
C. in no way
D. on the whole
网友回答
A. in no time
B. by all means
(答案→)C. in no way
D. on the whole
解析：in no time立刻，很快；by all means一定；in no way绝不；on the whole大体上。句意：没有他们之间的谈话，他们将绝不能够避免那次错误。这是虚拟语气，用Without引出条件，逗号后是虚拟语气的句子根据句意故选C。。