i regret that i have to notify you of so many orders being cancelled at the same time.
为什么be要加ing,这是被动语态的什么时态
人气：300 ℃ 时间：2020-05-04 03:11:54
解答
你好.在介词of後面的动词是动名词形式,这个动名词是被动语态形式.
== - - - of so many orders' being cancelled --------注意： -- - s’ + 动名词
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