3. My ______ were cold, so I put o ______.

This sentence is incomplete and requires more context to provide an accurate answer. If the missing word is 'feet' and 'socks' then the sentence can be understood like this: *Explanation:* The sentence is My **feet** were cold, so I put **socks** on. *Translation:* Мои ноги замерзли, поэтому я надел носки.