问题描述：
—Where's Hellen?I'm looking for her.—_____ to Australia.She's been there for three days.
A.She has gone B.She has been C.She went D.She will go
（是选A还是C）
A.She has gone B.She has been C.She went D.She will go
（是选A还是C）
问题解答：
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