Answer:
Elena desea comer una hamburguesa ___ queso.
sin
Nosotros ___ un cuento muy interesante en la clase.
leemos
Para el ___ yo como huevos fritos con pan tostado.
desayuno
Cuántos estudiantes hay en la clase de espanol?
Hay 22 estudiantes en la clase.
The answer is las and los
If my benefit is denied I receive the days that I have been away from the activities of my work
La escuela de Jorge ofrece clases de arte marciales como el karate y judo.
Answer: These are the right answers:
7. limpien
8. pongan
9. salgas
10. haga
11. que vayamos
12. que estudien
13. pasen
Explanation: Just to elaborate a little on the answer, it can be added that in this exercise they are asking you to complete the sentence with the right form of the verb in brackets. The mood that you must use is the subjunctive, which refers to information or actions that are more a possibility than a fact: "It is important that <em>you clean</em> the house," "I advise you <em>to not go out</em> with him," and so on.