quite a lot of people came over to help the poor man____at once
问题描述：
quite a lot of people came over to help the poor man____at once
A.not asking B.without being asked C.without asking D.not asked
为什么选B啊,being asked是什么时态?
答
being asked,动名词的被动式,在这里作介词without的宾语,without being asked整个作状语,修饰句子的谓语 came over to help