1. People cut down a lot of trees in the forest .
A lot of trees in the forest are cut down
2. We don t reuse many plastic bottles .
Many plastic bottles are not reused
3. Po the clean their schoolyard everyday ?
Is their schoolyard cleaned everyday?
4.How can you prevent pollution ?
How can pollution be prevented?
5.She often tells me some funny staries .
I am often told some funny stories by her
6.Does your mother take you to school in the morning ?
Are you taken to school by your mother in the morning?
7.They can make some toys from recycle products.
Some toys can be made from recycled products
8.We don t give him presents on his birthday .
He isn't given presents on his birthday