Part a: below is a list of sentences summarizing what happened in the lesson presentation. put the sentences into the correct order.

susana y pablo están en la calle en panamá.
pablo no quiere cruzar la calle.
pablo cree que los conductores conducen muy rápidamente.
susana quiere andar a la izquierda.
hay mucho tráfico y pablo quiere andar a la derecha.
susana ve un paso de peatones.
susana ve el muelle y la nave.

I'm almost 100% sure they're already in order.

Why is carlos and sofia afraid to travel with the musicians they meet on the road?

For this question, it will be important to use the words "mejor" (better), "lo mejor" (the best), and "lo peor" (the worst). while "mejor" is comparative (you are comparing one thing to something else), "lo mejor" and "lo peor" are superlative (there is nothing else better or worse than what these words are describing - there is no comparison).  you could say something like: la música rap es mejor que la música clásica - que es lo peor - pero la música rock es lo mejor de todas las formas de la música (rap music is better than classical music - which is the worst - but rock music is the best out of all the forms of music).