4.What _______ in China in 1949?(happen)
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4.What_______inChinain1949?(happen)4.What_______inChinain1949?(happen)4.What_______inChinain1949?(ha
4.What _______ in China in 1949?(happen)
4.What _______ in China in 1949?(happen)
4.What _______ in China in 1949?(happen)
happened