Answer:
1. es
2. Navidad
3. colocan
4. esperan
5. hay
Hope it helps! Make sure to double check if the answers match the sentence and you think it is correct.
D. He developed a theory on the extinction of dinosaurs
Quisieras que te dijera un "secreto*
it means would you like me to tell you a secret
Voy a pagar con dinero en efectivo
It means to say in your own words I think.