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Spaceship V was sent into space in 2003.
More spaceships will be sent into space in the future.
Many spaceships are sent into space by China.
be+ done 一般现在时态被动语态
was/were + done 一般过去时态被动语态
will be +done 一般将来时态被动语态
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- 3《I'm excited about the things that will be discovered in the future》SectionC PPT
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