1. Don’t _______ the disabled persons. We should help them.

A. look up on   B. look down   C. look down on   D. kook up

2¡¢It is ________ that some people are deaf.

A. happy   B. happily   C. sad   D. sadly

3. Pay attention _____ the weather before you go out.

A. to      B. of        C. at    D. in