选择题：Which of the following has the least effect on the effectiveness of questions in

题目内容：

Which of the following has the least effect on the effectiveness of questions in classes？

A.students'language proficiency

B.the number of students

C.wait-time allowed after a question

D.feedback given to students after they answer the questions

参考答案：

答案解析：

Which of the following is focused on writing？

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--Has your former classmate come back from the USA--Yes, he___________there for eight years.

分类：教师资格题型：选择题