Observations were made______the children at the beginning and at the end of pre

游客2023-11-04  19

问题 Observations were made______the children at the beginning and at the end of pre school and first grade.

选项 A、towards
B、of
C、on
D、with

答案 B

解析 考查介词用法。本句的正确语序为Observations——the children were made at…,故[B]符合句意。observe on作“评论,评说”讲,不能把它当成“对…行进观察”;也不能说make observations on sb.。
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