1361] Shortly after the accident two police were sent to the spot to keep order. [译文] 出了事故以后.二十个警察被排到这儿维持秩序. A. dozen of B. dozens C. dozen D. dozens of [答案及简析] C. donzens of 许多, 前面有数词.dozen就不用复数也不能加of. 查看更多

 

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