I wonder if it is because this exercise comes in many forms. When the text is printed for us to translate, it should not be accepted. When the lesson is spoken for us to listen and write it in German, they sound the same and both must be accepted. This also comes in a multiple choice format as well, but again we are seeing the text and it should not be accepted. It seems as though when they correct it for text, that people lose hearts for the listening version. I think if they cannot correct each version separately that they should continue to allow it, but remind people that the capital i (I) is for your and small i for her, their.
Here is a list of the German possessive pronouns: http://coerll.utexas.edu/gg/gr/det_04.html
These would be used with nouns in the nominative case such as with the subject.
But of course you will want to see the accusative case: http://coerll.utexas.edu/gg/gr/det_05.html
The "Tips and Notes" at the top of the page give the regular personal pronouns (not possessive) in a chart including nominative and accusative and some explanation about some determiners. Be sure to check this as you go through the lessons more information will be added.
Somebody told me that german is most likely to put "nicht" at the end of sentences. There are, of course, exceptions:
1) if you use two or more verbs, then, "nicht" goes before the second verb (which has to be in the last position) 2) if you reject a predicate specifically, then, "nicht" is before that predicate (b.e.: "das Auto ist nicht schwarz").
It's just how it is, there are no answers for it. For example in Punjabi, "nicht" or "kein" is "nai" or "ni", so the above sentence's translation in Punjabi would be "ohne ohda nimbu nai khadda" and if your asking a question, it would be "ohne ohda nimbu khadda ni ?". But no one can explain why this language is like that and same goes with every other language in this world. So you just need stop finding grammatical meanings because they aren't necessary.
"ihr" is probably the most confusing German word I've come across as a learner, because it has several meanings. It can mean "you all" in nominative case, as in "Ihr seid klein", but it can also mean "her" or "their" when the noun that follows is masculine or neuter, and in nominative (or, for a neuter noun, accusative) case. Example: "Ihr Hund ist klein" = "Her/their dog is small". (When the noun that follows is female, you must use "ihre" to mean "her" or "their".) Finally, it can also mean "(to) her", i.e. the 3rd person feminine singular pronoun in the dative case, as in "Ich gebe ihr ein Buch" ("I give (to) her a book").
One more thing: both "Ihr" and "Ihre", when capitalised, are used for the formal "your" (the latter for feminine nouns, the former for the rest). Of course you can't hear a capital letter, and if it happens to appear at the start of a written sentence you can't immediately detect it either... And then there's the fact that the spoken pronunciation of "ihr" isn't worlds apart from that of "er"...
Nope. The rule is:
"Der Mann ist nicht blau." (The man is not blue) "Blau" is an adjective, therefore 'nicht' goes in front of the verb.
"Die Frau isst ihre Zitrone nicht." (The woman doesn't eat her lemon) "Zitrone" is a noun, so nicht goes to the end of the sentence.
Correct me if I'm dumb.