问题描述：
He has been to Japan three times.(对three times提问) ----- ----- ----- has he been to Japan?
还有：
We took a minibus to Milkway.(保持句意不变)
We ------- to Milkway ------minibus.
还有：
We took a minibus to Milkway.(保持句意不变)
We ------- to Milkway ------minibus.
问题解答：
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