There are a lot of children ____(play) basketball there.____(luck) ,we bought some food,so we didn't go hungry.

There are a lot of children ____(play) basketball there.____(luck) ,we bought some food,so we didn't go hungry.
There are a lot of children ____(play) basketball there.
____(luck) ,we bought some food,so we didn't go hungry.

There are a lot of children ____(play) basketball there.____(luck) ,we bought some food,so we didn't go hungry.
playing
Luckily

playing,
表示现在进行时。be doing sth