Afterclimbinguptothetopofthe

发布时间：2020-07-28 02:26:26

After climbing up to the top of the mountain, all of us _______.A.were tiringB.are tiredC.were tired outD.were tiring out

网友回答

C解析be tired out意为“精疲力尽”，B项时态不对。
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