<em>La alumna "PONE" los cuadernos en una mochila.</em>
It's describing the chica, which is singular and also feminine, so therefore we must use la.
<em>if the question is asking to translate:</em>
1. What a disaster! I'm a bad waiter. (as in server)
2. I recommend grilled bistec with vegetables.
3. Maybe order the pork chops, I think they are really tasty.
4. What is going on here?
5. Tell me the specials of today please.
6. It wasn't my idea. Felipe is more responsible than I am.
<em>(btw: im hispanic so ik this for sure)</em>
1. Qué ven Summer y Jake en los setos?
2. Un jardinero recortando los setos.
3. Un hombre con un telescopio.
4. Un niño pequeño que busca su pelota.
5. Un hombre enterrando un mapa del tesoro.