组卷网 > 初中英语综合库 > 语法 > 被动语态 > 一般过去时的被动语态
题型:单项选择 难度:0.4 引用次数:193 题号:14498285
—Do you know Earth Day?
—Sure. It ________ in 1970 to tell us to protect our planet.
A.sets upB.set upC.is set upD.was set up
2021八年级·全国·专题练习 查看更多[3]

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