单项选择题
Exams, grades and marks should be abolished because children' s progress should be estimated only by （）
A．educated persons B．the children themselves C．teachers D．parents
单项选择题 The passage suggests that learning to speak and learning to ride a bicycle are （）
单项选择题 What does the author think teachers do which they should not do（）
单项选择题 30（）
