I tell you with certainty that he won’t be able to finish it before the deadline.
A. will
B. must
C. can
D. may
网友回答
A. will
B. must
(答案→)C. can
D. may
解析:
主要测试情态动词辨析。句子译文:我可以肯定地告诉你,他将无法在截止日期前完成它。此处应考虑所给选项的语气,由高到低排列如下:must、can、will、may。根据句子中with certainty,可知选择:can。