No. "Eu" can be only a man in this sentence!
Ela é jovem e eu sou velho (A young woman and a old man)
Ela é jovem e eu sou velha (A young woman and a old woman)
Ele é jovem e eu sou velho (A young man and a old man)
Ele é jovem e eu sou velha (A young man and a old woman)
In this exercise I had to choose between velho and velha (to be put as the last word in the sentence). I chose velha and it was marked incorrect. Even after reading the comments I still don't understand why my answer was wrong and why I should assume that the speaker is a male). :-(
Moderator, thank you for the course; I am sure all of us are enjoying it! As you already noted, a female speaker would say "Eu sou velha,"; however, in the "Select the Missing Word" activity (in Portuguese), for the following sentence: Ela é jovem e eu sou..... It only accepts "velho". It doesn't let you report "velha" as correct either, so I'd request for that to be changed. Much thanks.
Yes, but in order to see velho, you would have had the Portuguese to translate to English. In order to put velha, she may have had the English to translate to Portuguese and in that case she should report it as both velho and velha would be correct for "...I am old", but if she had the Listen to the Portuguese and type it then "velho" must be entered.