一个英语被动语态选择题.Why was he stand outside the door?He ------ by the teacher.A was asked B asked C was asked to D was asked for正确答案是D问句那个是standing，打错了、、、

应该是Why was he standing outside the door?吧~
首先被动句的构成是be动词+动词的过去分词
所以B肯定已经排除了
在看ask to，ask和ask for的区别
ask 解释：问
ask sb to do sth 叫某人做某事
ask for 要求；找（人）
问题的意思是为什么他站在门外
然后总结四个选项的意思
就能确定答案是D了 c.还原成主动语态就可清楚看出为什么。
The teacher asked him to stand outside.--> Why did the teacher ask him to stand outside?
He was asked to (stand outside) by the teacher. 因此 to不能省略。

是选A吗？要是是的话就是被问啊。be asked to do是别人让你做什么，be asked for被要什么

C
sb ask sb to do sth
变被动
sb be asked to do by sb

c.还原成主动语态就可清楚看出为什么。
The teacher asked him to stand outside.--> Why did the teacher ask him to stand outside?
He was asked to (stand outside) by the teacher. 因此 to不能省略。

应该是Why was he standing outside the door?
首先被动句的构成是be动词+动词的过去分词
所以B肯定已经排除了
在看ask to,ask和ask for的区别
ask 问
ask sb to do sth 叫某人做某事
ask for 要求；找（人）
问题的意思是为什么他站在门外
然后总结四个选项的意思
就能确定答案是D了

C
ask sb to do sth 要求某人做某事
He是被要求 所以用被动语态
其他都不符合意思
选A是被老师问
选D是被老师要

c，解释如liotliot88.