perplexed, baffled
Kat ficou perplexa.
Kat was perplexed.
Ela também parecia perplexa.
She also seemed perplexed.
A professora de francês ficou perplexa com as perguntas de seus alunos.
The French teacher was perplexed by her students' questions.
Fiquei perplexa.
I was perplexed.