Final answer:
To translate the sentences into Spanish using 'hay', we can use the verb 'haber' to indicate existence of something.
Step-by-step explanation:
To translate the given sentences into Spanish using the word 'hay', we can use the verb 'haber' which means 'to have' in the sense of existence.
- Hay un libro en la mochila.
- Hay veinte estudiantes en la clase.
- Hay un libro sobre el escritorio.
- Hay una televisión en la clase.
In these sentences, 'hay' is used to express the existence of something. It is important to note that 'hay' is used in the third person singular form regardless of whether the noun is singular or plural.
Learn more about Translation using the word 'hay' in Spanish