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我也选的是a,昨天纠结了半个多小时啊,白花花的时间。。。。。。说说我的理解。 had been allowd to dump 是过去完成时,表示过去某个点开始是不允许的,但是在这个店之前是允许dumping的,但是由于只是reduced,也就是一直在dumping ..OG 的解释An agreement that occurred in 1972 is correctly
described with the past tense verb reduced. Since
the dumping continued after the date of the
agreement, the past perfect verb bad been allowed
should instead be the present are allowed (if the
agreement remained in effect when the sentence
was written) or the past were allowed (if the
agreement was no longer in effect when the
sentence was written). Since were allowed does not
appear in any of the options, we can assume that
the correct verb tense is are allowed.
但是对于上面两个部分的解释,我还是很纠结,不理解是什么意思?求指教 |
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