I have an android cell phone. I am having so much trouble with the match sections in the lessons. The words are missing. I am hitting blindly from a blank screen. I am also having problem in the travel section. If airport is given, three answers has the, the, the, taxi but none with the airport. How can l type the answer correctly if it is missing. I wanted to enjoy Duolingo...but l am saddened. Can you please fix these problems so l can continue the lessons. Thank you very much! Mrs. Carr