第1个回答 2014-08-03
They have been to America for five years.
第2个回答 2014-08-03
They go to America aleady five years.
第3个回答 2014-08-03
they have been to america for three years本回答被提问者采纳
第4个回答 2014-08-03
They have been to america for five years.
第5个回答 2014-08-03
They have gone to America for five years.
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