It's called soccer as an abbreviation of Association Football - and this name - soccer - actually came into being in England back in the mid to late 19th Century to differentiate the game from the other football game Rugby Football (now simply known as rugby; though there are two different codes played: rugby league and rugby union. So yes, soccer is an English not an American term, albeit one that is now only really used in the US.
Thank you for sharing that simonsanders! Like Kevin, I always felt a little ashamed that Americans call football "soccer" while the term "football" is so ubiquitous in the rest of the world. American football could be more appropriately called "handball." Though Kevin's suggestion to call it "soccer" also sounds appropriate, because it sounds like "sock her!" (sock = to hit forcefully).
chocolate is a thing in itself, a noun; it does not depend on the biscuit or biscuits, s/pl. Un biscotto al cioccolato, molti biscotti al ciocolatto; the prepositional phrase al ciocolatto is fixed no matter how many cookies or biscotti or torte or bonbons (m/f) it applies to.
True story there. In America "a" biscotti is "a" very specific desert item that is biscuit like, but in no way resembles an American "cookie". A biscotti in America is a single item (despite ending in "i"). Blame Starbucks, the coffee bean cremators, for the American biscotti identity crises. ;-)
They're not the same thing; "the car is blue" and "it's a blue car" are different statements that answer different questions. To get to the present exercise, if the question were "what are those?" your answer would be correct (and "the chocolate cookies are mine" would be wrong), but if the question were "whose are those", the answer would be duolingo's one, and "they are my chocolate biscuits" would be an unnatural roundabout way of answering.
Sometimes, so this time, there is already a false answer in the response field, I could not delete. I had to set my own answer in front of it. For me it was not possible to set the cursor in the response field after the false sentence. So I could not delete it. Sorry guys, but that was not my mistake. That's a mistake from your system. Please correct that.
I also cannot set my cursor into a typo for correcting it. In that case I have to delete sometimes whole santences, for only one typo in one word. Whats the matter?