1. The two o______ languages in Canada are French and English.
2. She has a very large v______ and she can read English novels now.
3. Her health is g ______ improving.
4. His n______ language is not Chinese but he can speak it fluently.
5. He spoke for an hour but didn't a______ say anything important.
6. The police are still uncertain of the murderer's ______ (身份).
7. A lot of practice helped the spokesman to become a more ______ (流利的) speaker.