【題目】Costs are expected to double________of 2021.

A.by the endB.on the endC.in the endD.to the end

【答案】A

【解析】

句意:到2021年末為止,預計成本將增加一倍。

考查介詞短語近義詞辨析。bytheend常和of相連,用于指時間,意為“到……底(末)為止”;on the end在……的端頭; intheend不能和of相連,表示“最后,終于”;to the end直到最后。根據(jù)句意可知,是指到2021年末,故選A。

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