Noonecansayfor
问题详情：
No one can say for _________ what they are talking about.
A. certain B. certainly C. true
【回答】
A
知识点：介词和介词短语
题型：选择题
问题详情：
No one can say for _________ what they are talking about.
A. certain B. certainly C. true
【回答】
A
知识点：介词和介词短语
题型：选择题
