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[3g0.livejournal.com]

I am confused about something: I am writing a dialogue for my russian class, and in it, I want to say "I (female) became a good student." Я становила хорошeго ________.

I think that student (being the object) is in accusative case, but doesn't it need to agree in gender with the subject? This is where I'm getting confused. The book conjugates it as "студентов" in accusative case, but I am getting mixed up with the 'agree with the subject' logic which tells me that it should be "студентка", and I'm not sure about the accusative ending then. My decision there impacts how I conjugate the adjective too. Argh! Stupid cases, I hate them!

Thanks for the help.