Question

write the best answer to complete the sentence.

es el cumpleaños (birthday) de mi amigo. tiene 21

Explanation:

Analyze the sentence context

The sentence is: "Es el cumpleaños (birthday) de mi amigo. Tiene 21 [blank]."
This translates to: "It is my friend's birthday. He has 21 [blank]."

Identify the missing concept

In Spanish, age is expressed using the verb tener (to have) followed by the number of years and the word for "years", which is años.
Using the Spanish Vocabulary knowledge point, we translate "years" to "años".

Formulate the final answer

The complete sentence should read: "Es el cumpleaños de mi amigo. Tiene 21 años."
Therefore, the word that best completes the sentence is "años".

Answer:

Write the best answer to complete the sentence.

Es el cumpleaños (birthday) de mi amigo. Tiene 21 <blank>años</blank>