Final answer:
The correct pair of prepositions to complete the sequence is 'de' clarinette et je joue 'au' basket.
Step-by-step explanation:
The correct pair of prepositions to complete the sequence is de clarinette et je joue au basket.
When playing a musical instrument, we use the preposition de. For example, Je fais de la clarinette. On the other hand, when playing a sport, we use the preposition au or à la. For example, Je joue au basket (for masculine sports) or Je joue à la natation (for feminine sports).
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