I have to stop studying English lessons

[h3]Since yesterday, I have to stop my English studying on Duolingo class. The problem is the one of the multiple choice has hidden, I couldn’t continue studying.[/h3] [h3]I have to send my complaint to Duolingo. But it couldn’t solve my issue until now.[/h3]

[h3]昨天和今天，我被多鄰國的學習卡住了。問題是有一道題的選擇答案沒能顯示出來。我無法回答這道題，就無法接下去學習。[/h3] [h3]昨天我向多鄰國投诉，至今還沒得到有解決。我只好暫時停止了英語的學習。[/h3]