I think aussehen is the actual verb which means "to look like" and "aus" is a separable prefix. In most cases, the separable prefix goes to the end of the sentence.
I have the same question. "This is all blue" is not correct, suggested: "That is all blue". Don't get it...
So you have alles blau with sieht aus wrapped around it. Sieht aus [when wrapped around something] means looks like.
Das [that] sieht aus [looks like] alles blau [all blue]
= that (all) looks blue
= all of that looks blue
Although I was guessing, my answer was not much incorrect: 'Everything seems to be blue'. Though, Duoling took me one heart out.
I put "That looks all blue." Marked incorrect. Could that be correct or is there a reason that "alles" is applying specifically to "that" (i.e. "that all looks blue" or "all of that")?
"das" here is demonstrative pronoun I guess. the verb is "aussehen". another correct solution: that looks all blue.
So is "Alles sieht blue aus" not a good sentence? Frankly, it doesn't sound great.
I hate when DL gives examples like this, whith not much logic sense. And then after all 'this' and 'looks like' is not acceptable...! Grrrrrrr
"All of that looks blue" and "That looks all blue" are both acceptable answers, yet their meanings are quite different. Which one is correct? Thanks.