Question

Do as directed : 1)world environment day celebrates every year ( change the voice ) 2). So bring on the future ( add a question tag )

Answer 1

I guess your question's first part is wrong. It should be :
World Environment Day is celebrated every year.
Therefore , no changes can be made in this as it can neither be converted into passive voice nor can it be converted into active voice.
2. Future can be brought , can't it be ?
Hope it helps.. Mark as brainliest if it is...