Final answer:
The correct phrase to complete the first sentence is 'il fait froid'. It means 'it is cold' in English and explains why we wear scarves, gloves, and coats in winter.
Step-by-step explanation:
The correct phrase to complete the first sentence is il fait froid. In English, this translates to 'it is cold'. This phrase is appropriate because it explains why we wear scarves, gloves, and coats in winter.
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