"I will be in the Olympics."
No, because it would mean that you are "planning to" do so - at least it would have to translate somewhat like that. But with "tsumori" you could either convey conviction (firm plan) - or vagueness. So you could plan on becoming an athlete, but life could get in the way. The way it is written here - for me - doesn't imply that sort of vagueness. For other difficult grammatical nuances please always have a quick look at Tae Kim's website. It's a great website, but maybe just aiming at intermediate or higher - or at least you should know your way around your kana and kanji.
This is the final sentence in my Duolingo (beta) Japanese journey. What a beautiful experience, thanks Duo! I'll wait patiently for a Kanji filled, furigana guided, speaking-exercise enriched course tree. :P
I'll keep learning Japanese and also explore new languages! :D
I would love to see a Duo mascot in the 2020 Olympics!!! Don't you? :)
If you want more kanji, do the English tree for Japanese speakers. I took a quick look and there seems to be a lot more kanji over there (as it's for native speakers, it makes sense). The downside, it doesn't teach the meanings with them, and it doesn't have the audio for the pronunciation.
I use an addon for Chrome called "rikaikun" that shows the reading and translation of kanji when hovered over which helps on that front (also helps when the dictionary hint is all kanji and I don't know how to spell it...).
That would make sense in a limited manner, but then consider "スポーツ" which means "sport(s)". The Japanese has the "s" in it which makes it plural, but can also mean the singular version of it. There is no differentiation, but that doesn't determine which version is taken over to Japanese.
輪 (りん) = ring
五輪 (ごりん) = Olympics
Mind blown? :P
I accidentally typed the answer this way, forgetting that Duo uses オリンピック in this sentence. I've met 五輪 in other learning resources such as the Android app Kotoba-chan. Unfortunately, Duo doesn't accept this answer. Sometimes I think this course might be easier not knowing any Japanese at all beforehand, because then you wouldn't know the unaccepted alternative words to get confused with... ^^;