【单选题】Why not ______ help when you were in danger?
【单选题】I (asked) (asked for) him a question. I did not (ask) (ask for) a help.
【判断题】教育技术学的基本理论是教学理论和学习理论。
【简答题】A.Ask Johnston one more time. B.Ask Johnston to extend the deadline. C.Ask Johnston to clarify the submission date. D.Ask Johnston to spend more time explaining.
【判断题】教育技术学的基本理论都是教学理论和学习理论。