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Translate the following sentences into English and tell what tense is used in each sentences: 1. 明朝和清朝的皇帝曾住在故宫，但它在1925年的时候被变成了博物馆。 The emperors of the Ming and Qing dynasties used to live in the Palace Museum. But ________________________ in 1925. (it表示：________________)
Revision
it was turned into a museum
the Palace Museum