[otrs] Compose Answer (email)

I create two Queues at my OTRS test system (2.4.7), and assign its Systemaddress, and "empty answer" and "test answer" added to the queue response [Responses <-> Queue], but there is not "Compose Answeer(email) can let me repose all tickets at these two queues. can you tell me what happen with these two queues and how to fix. thanks much!