They have been skating .
A. for three hours
B. since three hours ago
C. three hours ago
D. since three hours
They have been skating .A. for three hoursB. since three hours ago C. three hours agoD. si
答案:2 悬赏:70 手机版
解决时间 2021-01-04 02:01
- 提问者网友：不爱我么
- 2021-01-03 12:28
最佳答案
- 五星知识达人网友：上分大魔王
- 2021-01-03 13:58
(答案→)A. for three hoursB. since three hours ago C. three hours agoD. since three hours解析：for 一段时间，为现在完成时态的时间标志，故选答案为A
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- 1楼网友：杯酒困英雄
- 2021-01-03 14:13
你的回答很对
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