Little did they realize that they ______ (make) an important discovery in scienc

游客2023-09-23 21

问题 Little did they realize that they ______ (make) an important discovery in science.

选项

答案 had made

解析过去完成时。此句little位于句首，引起了部分倒装句。而此题考查的是宾语从句中的时态。由于主句是过去时，从句动作发生在主句之前，所以从句使用过去完成时。

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