Answer:
1. No, no LA crucemos
2. Sí, NOS levantaremos a las seis
3. No, no LOS enviaremos.
Explanation:
Before answering these exercises, we have to remember that exist two parts of the sentence that are called DIRECT OBJECT and INDIRECT OBJECT, or in Spanish: OBJETO DIRECTO and OBJETO INDIRECTO; but, what are they used for?
In Spanish we have object pronouns that help us to express these parts of the sentence without writing the entire nominal phrase:
Thus, we can say: Yo compré un pastel (I bought a cake) or Yo LO compré (I bought it); here LO is referring to the cake bought by me.
Now we can proceed to our answers:
1. No, no LA crucemos
2. Sí, NOS levantaremos a las seis
3. No, no LOS enviaremos.