The Browns ( ) Water World twice .A wentto B has been to C have been in D have been to
题目
The Browns ( ) Water World twice .A wentto B has been to C have been in D have been to
为什么?B C D 什么区别?
答案
D.Browns已经去过水世界两次.
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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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