Every pupil has his own potential so it is not proper to them two kinds
A. classify; into
B. put ;off
C. lead ; into
D. betray ; from
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(答案→)A. classify; into
B. put ;off
C. lead ; into
D. betray ; from
解析：考查词组辨析：A．classify; into分类成，B．put ;off推迟，C．lead ; into带…进入， D．betray ; from背叛，句意：每个学生都有自己的潜力，所以把他们分类成两种不合适。选A。