Safety in school has been of great concern because of the frequent reports ____ students got injured or killed while in school.

Why don’t you ________ your book here?

We spend as much time as we can _____ English.

Where is Jack? I haven’t seen him for a long time.—He ______ HK with his family. I think he is having a wonderful time there.

Who is ______ man with glasses? — Oh, he’s our new English teacher, Mr. Li.