I am sorry that you ___for such a long time,our but it will still be an hour or so before Tom
题目
I am sorry that you ___for such a long time,our but it will still be an hour or so before Tom
comes back
A:had waited B:have been waiting C:waited D:wait
答案
B:have been waiting
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我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
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