(They must have been there yesterday ,______they?)能用"weren't they_英语解答

(They must have been there yesterday ,______they?)能用"weren't they" 还是"didn't they"?

人气：411 ℃　时间：2019-10-01 09:35:00

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