问题描述：
高一新标准英语
一.将下列句子变成被动语态、
1.Thousands of tourists visit Xi'an every year.
2.Did they build the Great Wall at the same time as the Great Canal?
3.Europeans didn't invent fireworks.
4.Did Gaudi design all the churches in Spain?
5.When did they build the Three Gorges Dam?
6.China produces a lot of computers.
一.将下列句子变成被动语态、
1.Thousands of tourists visit Xi'an every year.
2.Did they build the Great Wall at the same time as the Great Canal?
3.Europeans didn't invent fireworks.
4.Did Gaudi design all the churches in Spain?
5.When did they build the Three Gorges Dam?
6.China produces a lot of computers.
问题解答：
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