你想告诉大家"上学不能迟到",你可以这么说:Don't .
It is polite for students to put their hands in class if they have questions.
Anna is independent and she can look after when she's alone at home.
You must return the book in fifteen days.It's a of our library.
In the playground, I threw the ball to her and she (catch)it
Which is more (value) to you, health or wealth?