(They must have been there yesterday ,______they?)能用"weren't they" 还是"didn't they"?
(They must have been there yesterday ,______they?)能用"weren't they" 还是"didn't they"?
英语人气:280 ℃时间:2019-10-01 09:35:00
优质解答
havn,t可是有时间状语哦?有yesterday不是不能用haven't吗这是现在完成时态噢好的谢谢助动词用have
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