The piece I have practiced today was Chopin's third sonata.
I worked on Chopin's third sonata today.
ご質問ありがとうございます。
① "The piece I have practiced today was Chopin's third sonata."＝「今日、私が練習した曲はショパンのソナタ3番でした。」
② "I worked on Chopin's third sonata today."＝（同上）
この文脈では*practiced*＝*worked*になります。
Happy Practicing! （練習、頑張ってください！）
The piece we practiced today was Chopin's Sonata No.3
"今日練習した曲はショパンのソナタ3番でした。"
- The piece I practiced today was Chopin's Sonata No.3
- Today's piece was Chopin's Sonata No. 3.
- I practiced Chopin's Sonata No. 3 today.
- Today was spent practicing Chopin's Sonata No. 3.
No = number
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