In the face of the variation (变异) of the virus,not only China but also other countries to take action to fight against the crisis (危机).( )
have
has
having
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.