1._many times,he finally understood it.
A.Told B.Having been told
2._time,the postman refused to deliver our letters unless we chained our dog.
A Bitten B.Having bitten
还有第二题 如果用Having been bitten的话行么?
什么时候用Having done什么的啊?这个不大会用 跟done也分不大清
人气:346 ℃ 时间:2019-10-10 00:46:29
解答
第一题:句意为“被告诉了很多次,最后他明白了.”要用被动语态,而且是过去的过去要用完成时.A选项既不是被动语态也不是完成时,所以不能选.
第二题:这道题你貌似写错了吧,应该将time改为twice,这样的话才能通顺,而且应该选择A而不是B,其句意为“由于被咬了两次,邮递员拒绝帮我们送信除非将狗拴上.”
而having done 表示分词动作\状态先于谓语动词发生.被咬是限于拒绝发生的为什么不用having done呢因为主语是人 postman,人属于被咬,而不是主动咬谁。例如:Having bitten the postman twice, the dog must be chained.此句主语为狗,主动咬人。
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