There are some children who are having fun on the beach.改为同义句There are some children ____ ____ on the beach.

There are some children who are having fun on the beach.改为同义句There are some children ____ ____ on the beach.
There are some children who are having fun on the beach.改为同义句
There are some children ____ ____ on the beach.

There are some children who are having fun on the beach.改为同义句There are some children ____ ____ on the beach.
having fun/enjoying themselves
沙滩上有很多孩子正玩得开心