—Mr Li, I am sorry I ______ my exercise-books at home.—That’s all right. Don’t forget to ______ them to school tomorrow.
Please write down the answers________ these questions .
---Could you help me clean up the room? ---.
The boy seems sad. Let’s .
If you read a lot, your life will be full pleasure.
---Have you finished your homework? ---Yes, I have finished it.