How was I supposed to know that "Vous lisez un livre." was a valid answer at this state?
yes, we haven't seen many "vous" sentences.
Why is vous lisez also not a correct translation?
It should be now at least. I answered the question with the "Mark all that are correct" with both tu and vous forms and got it right.
there are two answer?
vous lisez un livre is also a valid answer; unless you were saying "There are two answers, why isn't the other one listed" in which case, Yes. Why, in fact?
Tu lis isn't correct?
Surely it IS correct!
I marked both tu and vous and got it WRONG! I note that below someone did that and was correct. I was corrected and told only vous is the correct answer. So now I am confused? Help please.
I thought if using "ing" you use être conj. and then the verb+ant? Ex: I eat is je mange but I am eating is je suis mangeant?