hong kong came back to china fifteen years ago同义句hong kong ___ ___ ___to china__ __ __ __

Question

如题所述

Answer 1

hong kong came back to china fifteen years ago同义句
Hong kong（has been back ) to china(since fifteen years ago )分析 come back 是终止性动词，故要改为be back

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Answer 2

hong kong has came back to china for fifteen years.

Answer 3

Hong Kong belongs to China for fifteen years