Question

Fill in the blank with the correct form of beau.
Ma cousine a trois
enfants.

Answer 1

beaux

Since the thing that you are referring to, in this case "enfants" is plural, the answer would be the plural of beau, which is beaux.

Answer 2

Bonjour

Ma cousine a trois beaux enfants.

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beau = masc. sing.

bel = masc. sing. when the following noun begins with a vowel or a mute H (un bel homme, un bel avion)

belle = fem. sing.

beaux = masc. & fem. PLURAL

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