I'm not a native english speaker, so I was really annoyed when i was marked as mistaken for typing in "arrive to". I just googled it, and it seems that in english you never use "arrive to", only "arrive at" or "arrive from"
So "arrive to" - always incorrect, you should use "arrive at" all the time with the exception of countries - you can say "arrive in USA" or "arrive in Russia"
Quick nit pick from native speaker: You should use "arrive in the USA". Don't use "the" with Russia, China, Ukraine, etc., but countries that are acronyms should have "the" in front of them, e.g. "the UK" or "the DRC".
Otherwise, yes, you're right. "Arrive to" is only correct if you're putting a verb after "to", like in "He arrived to wash the dishes", but then "to" is just a part of the "to wash" infinitive.
It is not the acronym that is the defining factor. You arrive in THE United States of America or THE United Kingdom but in Australia because the first two are collective proper nouns while the third is a singular proper noun you can however arrive in THE Commonwealth of Australia, a collective noun. This is supported by Archie25 who notes that you arrive in THE islands or but only arrive at Hamilton Island, collective versus singular nouns. Of course English being taken from many other languages and slavishly response to what sounds right there will be exceptions.
They are interchangeable. My Oxford dictionary lists both words to mean an organization OR a building. The online Miriam-Webster even has "an educational institution" as one of the meanings of "institute."
Duolingo needs to add "institution" to its database as a correct response.
There were many good comments about small nuances of English use; thanks forum contributors!
One other thing may help to understand using the word "institution" that no one mentioned. Using that term needs context or specific description, so as not to be confused with an asylum for the insane. Example: "She had a scholarship, and was sent to an institution of higher education" = good news! "She became so paranoid, she was sent to an institution"= bad news! (Reminds me of the lesson saying, "She took out a knife." ...)
Is anyone else having issues with the sound being truncated or garbled?
I see this audio issue using Duolingo through either Chrome or Internet Explorer. The audio is better using the IOS app. I prefer using Duolingo through the internet site. It has more content, and the questions seem to be harder.
But the audio is bad