Nancy a bus to school, but now she rides a bike.A、is used o takingB、was used to takeC、used to take
Some wild animals are in danger ________ the loss of living areas.
——How old is the baby boy?——He is an ________ boy.
There is ________ sheep eating grass there.
Beijing is ____ largest city in China.
The children are ____when they hear the ____news.