考研考试

【单选题】Observations were made ____________the children at the beginning and at the end of pre-school and first grade.
A．towards
B．of
C．on
D．with
网考网参考答案：B
网考网解析：
observations were made of the children = children were made observations of，句中用了 made observations of的被动式。 查看试题解析出处>>