"Not until science became prominent______be abolished" , some people argue.

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问题 "Not until science became prominent______be abolished" , some people argue.

选项 A、did slavery come to
B、slavery to
C、had slavery come to
D、that slavery came to

答案A

解析 如果选B,则主句中没有谓语动词;如选D,则会有两个从句,而没有主句。因此,B和D都错误。如果选择A或C,直接引语部分构成一个主从复合句,根据句意,主句表示的动作发生在从句之后,因此,主句中的谓语动词也应使用一般过去时。例如:The greedy old woman ate and ate until she was full up.这个贪婪的老太婆不停地吃啊吃,一直吃到很饱为止。另外,需要注意的是,当否定词或含有否定意义的词组位于句首做状语时,主谓颠倒。常见的否定词和具有否定意义的词组有:at no time,by nomeans,few,hardly,in neither case,in no case,in no time,in no way,in vain,little,neither,never,no more,no sooner,nor,not,not once,not only,not until,on no ac—count,rarely,scarcely,seldom,still less,under no condition,under no circumstances等,例如:Never in my life have I seen such a wonderful place.我一生中从来没见过如此美丽的地方。Not only was Churchill a statesman,but also a great writer.丘吉尔不但是一位政治家,而且也是一位伟大的作家。
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