Answers are often Wrong!!!
For example:
洗手間 - out of the multiple choice you can choose “bathroom” or “toilet” among other answers. If you choose the answer “bathroom” they will say it’s wrong. They want you to select “toilet” which is actually 馬桶 in Mandarin.
So maybe it was a mistake. I tried the second level quiz...and guess what another question not matching the correct answer.
You’ll become frustrated as you select right answers that are apparently wrong or don’t even have a proper right answer. Don’t trust the English in this app to match the Chinese correctly.