以下是一些實用的英語短句：
1. Please be quiet.
2. Can you help me with this?
3. Thank you for your help.
4. Excuse me, do you know how to get to the nearest post office?
5. Sorry, I didn't understand you. Could you repeat that?
6. Goodbye for now.
7. How much does this product cost?
8. Please check this document carefully for any errors.
9. Could you give me some advice on how to improve my English?
10. Please keep in touch with me by email.
這些短句都是非常實用的日常用語，可以根據需要進行靈活運用。