Jack is good, hard-working and intelligent. , I can’t speak too highly of him.
A. In a word
B. As a result
C. In other words
D. Above all
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(答案→)A. In a word
B. As a result
C. In other words
D. Above all
解析：考查短语辨析。In a word 总之，As a result 结果，In other words 换句话说，Above all更重要的是，句意：杰克和善良，勤奋，聪明，总之，我再怎么表扬他也不为过。所以选A。