Spanish language Q&A Forum

I just did an exercise and 'No todavía me he vestido para la fiesta'  was wrong. The correct answer was  'Todavía no me he vestido para la fiesta'.  I don't understand the difference. Help please.

In one question, I was tasked to translate "I want to buy it for him."     I selected " Quiero se lo comprar."   and was marked wrong.   I understand that one could say "Quiero comprárselo." , which was the correct answer.   But I always thought that you could have the pronouns attached to the infinitive or put them in front.   

sometimes the answers come back in English instead of spanish.  How can I fix that?

Hi, in this exercise, Lola 'odia a los gatos' but I think that Danny "odia los perros",  in Lola's translation. 
Is there a difference in whether the personal 'a' is needed in each case?  I weighed it up as - it is a definable person/pet? and I opted for 'not' using personal a because they hate dogs/cats in general. Hmm, but then again, they are sort of talking about their own pets?
Then there's the question of 'odiar' being clearly a strong feeling... but not exactly a strong affection.
Please help!

cheers,