问题补充:
He a sense of humor. This is why I don’t like being friends with him.
A. is lack of
B. is lacking in
C. lacks of
D. is lacking of
答案:
A. is lack of
(答案→)B. is lacking in
C. lacks of
D. is lacking of
解析:考查lack用法。Lack+of+名词 ,前面不要冠词; Be lacking in缺乏(某种品质、特点等),不够,lack在这里v变形为adi。选项AD结构错误,根据下文a sense of humor可知选B。