¿Por qué es importante identificar nuestros rasgos o características?

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Okay so i'm taking an online spanish course (penn foster), and in the study guide, you have to create a bunch of sentences with words you've learned so far. translating, reading, and those kinds of things are fairly easy, but when it comes to making my own sentences, my brain just kinda waltz's away. anyone got any tips?

The teacher didn't explain this at all and i don't understand this

Fill in the blank with the correct present form of the reflexive verb in parentheses. remember there are two parts to each reflexive verb. mis amigos (divertirse) mucho en la fiesta. (2 points)