rees and grass ______ 80% of the whole county,Yongtai has taken on a new look.

____in smog as the pollution worsened, many cities of the Yangtze River Delta region had to close several freeways.

We shouldn’t________he trees in order to protect the environment．

He didn’t make _____ clear when and where the meeting would be held.[ ]

_______your mother good at cooking—Yes, but my father _____cook well.