Every year, _____ energy is spent on environment protection.

However hard I tried to think about it,what he said didn’t reallyto me. [ ]

Yancheng, the hometown of Milu deer, is ________ perfect place for wildlife.

The boy didn’t sleep well last night because of the ______ from the factory.

Do you know _____ this teddy bear belongs to —–Let me see. Oh, it’s _____.