well, I translated cxu ne with "do they", which should be correct but was marked as wrong too... I reported it.
Why doesn't it accept 'don't they?' as correct?
You don't tag "don't they" on a negative sentence. It should be "do they."
What about 'isn't that right?' for cxu ne?
The sentence is wrong. I'm going to let someone know.
Ču ne? = or not?
Most likely, the word for fly, "muŝo", comes from the French word "mouche", but interestingly enough, the Japanese word for "bug/insect" is "mushi", yet probably just a coincidence. Languages never cease to amaze me.
山 (yama) means “mountain” in Japanese but яма (yama) means “pit, hole” in Russian.