Answer:
1. que
2. que
3. lo que
4. que
5. quien
Quien, lo que and que are relative pronouns, used to join two clauses, introducing a subordinate clause. Que and lo que refer to an objects, while quien refers to people.
Cuido a la gente. Soy veterinario. False
Veterinario means veterinarian.
La recepcionista y la secretaria contestan el telefono en la oficina. True
Recepcionista means receptionist and secretaria means secretary, and both usually have answering phones as part of their jobs.