1 Who invented the first television改为被动句 2Much information is stored by the floppy disk主动句

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1 Who invented the first television改为被动句 2Much information is stored by the floppy disk主动句
1 Who invented the first television改为被动句 2Much information is stored by the floppy disk主动句

1 Who invented the first television改为被动句 2Much information is stored by the floppy disk主动句
Who was invented the first television by?

1. By whom was the first televison invented ? 2. The floppy disk stores much information.