Final answer:
The correct word to complete the sentence is 'infirmière' which means 'nurse' in English.
Step-by-step explanation:
The correct word that completes the sentence is infirmière. In French, the word 'infirmière' translates to 'nurse' in English. Since the sentence states that Robert works in a hospital, it would be appropriate to use the feminine form of the word 'nurse'.
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