The federal rules aimed at protecting human subjects of medical experiments were established to ensure that patients would be warned of potential risks and that an independent panel would evaluate the experiment before it was conducted.
语法 Sentence Correction-3450
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正确的用户笔记
WMEL53 2016-02-01 02:51:49
ensure = must be ensure that... and that 平行 用would： 語意為 federal rules是要保證"未來"還未發生的事。
huiminzi1124 2016-06-21 11:12:16
AB中must与ensure有语意上的重复 CD时态不对 时态+平行
katieeeeee 2014-12-13 02:27:36
前后平行
leahliulliu1 2016-11-18 10:21:33
ensure that后面内容尽量与主句事态一致
Egoyiyy 2016-03-16 15:19:32
manhattan上的idiom有说ensure that后加are or will be，not must be or should be
vickiaro 2015-11-06 11:36:31
must be和ensure有语意上的重复。are warned时态不正确，过去发生的事情应该用would。
juncylam 2015-09-23 10:10:54
key： 时态&平行 注意后半部分before it was conducted提示了前面用过去式 ensure that is/are 或 will would be 和 would evaluate平行
SharonUSA 2015-09-20 14:57:38
'Would' should be used when a sentence talks about the future in past tense. 错选B must be warned of potential risks and that an independent panel. 其中，must和ensure的意思重复;从句时态和主句时态一致
前程万里两不相干 2015-08-06 10:58:34
时态 ＋ 平行
tricolorviola 2015-07-12 18:46:07
evaluate是原形，作为突破口。 并且 and 前后要形式一致
nfusion 2015-05-05 22:23:27
本题考时态，were established and before it was conducted
