1. The Students’ Union often o_____________ a great variety of activities to make our campus life rich and lively.
2. English is the major o _________language of the USA.
3. Mary is o________ about her chances of winning a gold medal.
4. when I arrived I saw the place was already __________(占据)by two strangers in uniforms.
5. His o_______ remarks are applauded by the audience.
