write the definite and indefinite article that corresponds to the noun according to its gender and number…

Brief Explanations:

In grammar, definite articles specify a particular noun (e.g., "the" in English, "el", "la", "los", "las" in Spanish). Indefinite articles introduce non - specific nouns (e.g., "a", "an" in English, "un", "una", "unos", "unas" in Spanish). They agree with the noun's gender (masculine or feminine) and number (singular or plural).

Answer:

Definite Article: In Spanish, for a singular masculine noun, it's "el" (e.g., el libro - the book), for a singular feminine noun it's "la" (e.g., la mesa - the table), for a plural masculine noun it's "los" (e.g., los libros - the books) and for a plural feminine noun it's "las" (e.g., las mesas - the tables). Indefinite article: In Spanish, for a singular masculine noun, it's "un" (e.g., un libro - a book), for a singular feminine noun it's "una" (e.g., una mesa - a table), for a plural masculine noun it's "unos" (e.g., unos libros - some books) and for a plural feminine noun it's "unas" (e.g., unas mesas - some tables).