UC知道The man saw it __ when he was walking past.
来源：百度知道 编辑：UC知道 时间：2024/09/24 03:18:07
The man saw it __ when he was wacking .
A.happen B.happening
答案是A，为什么B不行
谢谢
这几个回答不是多满意:::请专业的给与更合理的解释，谢谢1
A.happen B.happening
答案是A，为什么B不行
谢谢
这几个回答不是多满意:::请专业的给与更合理的解释，谢谢1
看context，如果是看见正在发生的事情，我觉得可以选b
happen是瞬间动词，不能用动名词，故没有happening这个形式，
希望对你有帮助！！
主将从现
see sb. do sth. 没听说过doing的形式
Soon after the earthquake,every man ,woman and child __ about it.
the man who the deer saved saw the notice
i saw the man ----down and the driver-----away 选择题
The man was soon outside the house and Frank saw him look up at the windows
__ information it is ！ Just put it into the computer .
It was the room __ his son broke the vase.
She didn't like __ at the poor man .
The young man often practices __(speak)Enlish with her.
When you put your __(1)__ under the water ,you cannot keep it __(2)__ long
It is the man behind the gun that tells 意思？