Jack is good, kind, hard-working and intelligent. , I can't speak too highly of him.
A. As a result
B. By the way
C. On the whole
D. In a word
网友回答
A. As a result
B. By the way
C. On the whole
(答案→)D. In a word
解析：in a word(=in short)总之，简言之。本题是测试“过度词”，考生务必根据上下文的逻辑关系来选择适当的过渡词，使句子的意思前后连贯。