Verified Answer :

Yo compro 'una' regla para mi clase de matemáticas.

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Answer:

The correct word to fill the blank space is:

C) una

  • Yo compro una regla para mi clase de matemáticas.

Explanation:

  1. The sentence is about buying a rule (regla) for a math class
  2. The key word to look for is the right sustantive to combine with regla (rule)
  3. The conjugation for regla (rule) must be singular and femenine.
  4. The options are:
  • Unos (plural and masculine)
  • Un (singular and masculine)
  • Una (singular and femenine) CORRECT
  • Unas (plural and femenine)