给出5个句子，每个句子包含一个空行，需要填入适当的单词。


1. Reading _______ your mind sharp.
2. She _______ her bike to work every day.
3. The cat was afraid of the _______.
4. He _______ his keys and couldn't get into the house.
5. _______ is my favorite kind of cake.
1. Reading keeps your mind sharp.
2. She rides her bike to work every day.
3. The cat was afraid of the vacuum.
4. He lost his keys and couldn't get into the house.
5. Chocolate is my favorite kind of cake.