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Shortly after the accident,_____ police were sent to the spot to keep order.A.dozens of B.dozen
人气:151 ℃ 时间:2019-08-20 16:41:43
解答
A dozens of 表示几十个, 由后面的were看出,要用复数. 如果选B的话,则要用a dozen of .表示许多,一打( 12.3个.)
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