Someone please help I will mark as brainiest

Fill the blank with a la, a las, a los, or al. carlos no en el parque.

These are the questions and answers select the best translation for the following term or phrase. what did i do? ¿qué hice? select the best translation for the following term or phrase. i take one piece of wood. tomo un trozo de madera. fill in the blank according to the story. en la mesa hay varios trozos de madera

19. fill in the blank with the correct conjugation of the verb in parentheses. (estudiar) en la biblioteca