生成一组用于学习英语单词的句子，包括五个不同的动词，并确保每个句子的主题不同。
1. I often cycle to work to keep myself fit.
2. She sings beautifully in the choir every Sunday.
3. The chef cooked a delicious meal for us at the restaurant last night.
4. He studies hard every day to pass his exams.
5. The dog barks loud whenever someone knocks on the door.