问题
选择题
Children in school are____into different levels of grades,according to how much they know.
A.combined
B.classified
C.listed
D.clarified
答案
答案:B
句意:根据孩子们知道的多少,他们在学校被分为不同层次的年级。classify意思为“将……分类,分班”;其他几个词没有这层意思,不合题意。combine结合;list列举,列出;clarify澄清,阐明。