Mrs Brown is supposed ___for Italy last week .a to have left b to leave c to be leaving d to have been left

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MrsBrownissupposed___forItalylastweek.atohaveleftbtoleavectobeleavingdtohavebeenleftMrsBrownissuppos

Mrs Brown is supposed ___for Italy last week .a to have left b to leave c to be leaving d to have been left
Mrs Brown is supposed ___for Italy last week .
a to have left b to leave c to be leaving d to have been left

Mrs Brown is supposed ___for Italy last week .a to have left b to leave c to be leaving d to have been left
之所以选A是因为,比B的用法更FORMAL一些,我拿给我一个英国朋友看了这道题,他说A是很正式的用法,但B也没有大错.
TO HAVE LEFT是强调已经完成了这个事情,比B项更强调一些.
话说国内的语法真是.变态.

应该是B
因为后面的时间是last week,所以必须用过去时,而非完成时。但是因为跟在'to"后面,所以使用动词原形,即to leave.我也是选择B ,但答案是A ,是不是这样理解的呢?假设她上周已经去了意大利,所以用完成时?哎呀,这我就不知道了,可能你的解释是对的吧,抱歉。...

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应该是B
因为后面的时间是last week,所以必须用过去时,而非完成时。但是因为跟在'to"后面,所以使用动词原形,即to leave.

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