#speak in duo
I wish they made a way to be able to talk back.<h1>parler in duo</h1>
They have speaking exercises, but they only work on Chrome, if you have chrome, go to settings, then to account, and press "on" on the microphone. The microphone works on my iOS device. If you have one I don't see why it wouldn't work on yours.
Duolingo Staff hasn't written the code for speaking exercises onto the Chinese, the Korean, and the Japanese courses yet because those courses are very new.