He to Australia on business before. A.has been B.has gone C.went D.will go 答案: 3.A has be——青夏教育精英家教网—

摘要：He to Australia on business before. A.has been B.has gone C.went D.will go 答案: 3.A has been to的意思是“到过 ,has gone to 的意思是“去了 .

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