What do you think of the report on the UFO? Great! Many students were interested in it and they kept on standing _____ the end of the meeting. [ ]

I remember you came to see me ____ a cold Tuesday evening. [ ]

Why not _____ music here, Jack? ―Sorry, I don’t like the music. May I listen to the CDs by S.H.E?

We did a survey _____ our readers. [ ]

I’ll see to your cat when you aren’t in ? What does the underlined phrase mean ?