Final answer:
The appropriate word to fill in the blank in the sentence 'Yo juego' is 'bien'. It means 'well' in English.
Step-by-step explanation:
The appropriate word to fill in the blank in the sentence Yo juego is bien.
In Spanish, the word bien translates to well in English. So, the sentence Yo juego bien means I play well.
For example, you could say Yo juego bien fútbol (I play soccer well) or Yo juego bien ajedrez (I play chess well).
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