There is only 1 queen bee in th hive.
There is only one queen bee in each hive.
Under normal circumstances, there will only be one queen in a hive,
Queen bees rule the hive.
They don't. Queen bees don't normally leave the hive, and there is only one in each hive.
A queen bee is the only egg-laying member in a hive of bees.
The only time a queen bee leaves her hive is when she is still a virgin and then she will make a mating flight, mate with many many drones in flight and then return to the hive. She does not "have to stay in the hive" but nevertheless she does.