The federal rules aimed at protecting human subjects of medical experiments were established to ensure that patients are warned about potential risks and that an independent panel evaluate the experiment before it was conducted.
语法 Sentence Correction-3448
标记
正确的用户笔记
Euginia 2014-12-12 18:26:47
were established ,过去时态
Phoebeqqe 2014-07-15 16:22:41
medical experiments were established表示过去时，are warned时态不对
Sparrow_7 2016-04-23 21:44:48
ensure不是boss word
sasazz 2016-11-15 11:15:28
ensure并不是“要建命”系列的词，所以它在这里不是command subjunctive，而且后面未划线部分的was conducted表示这是发生的过去的事情。
杀鸡的熊 2016-04-17 11:36:28
主谓不一致
xiaobaitu 2016-02-18 10:12:25
it was conducted.
Key_leo 2016-01-28 12:05:32
时态不对
Key_leo 2016-01-28 12:05:31
时态不对
Key_leo 2016-01-28 12:05:30
时态不对
Key_leo 2016-01-28 12:05:30
时态不对
ypheroin 2016-01-02 16:27:44
主句的时态是were established，说明是过去发生的事情，从句最好与主句保持一致。
wong20gogogo 2015-08-07 17:37:36
主句过去时，主从句时态要一致
