Europe has had to wait until the end of the 20th century for the Channel Tunnel.has had to do是什么时态?
2022-02-21 03:48:19 34次 反馈错误 加入收藏 正确率 : 100%
题目内容：
Europe has had to wait until the end of the 20th century for the Channel Tunnel.
has had to do是什么时态?
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