Many students independent learning skills because the education system spoon-feeds them.
A. are lack in
B. lack
C. lack in
D. lack of
网友回答
A. are lack in
(答案→)B. lack
C. lack in
D. lack of
解析：考查lack用法。动词lack是一个及物动词，后面可以直接加宾语，形成lack sth缺少某物；还构成be lacking in…在…方面缺乏。For lack of…因为缺少…；句意：因为填鸭式的教育体系，很多学生都缺少独立的学习技能。故B正确。