1. All of these old persons said that they _____ (经历) the two world wars.
2. The two _____ (官方的) languages in Canada are French and English.
3. My friends Mary and Johnson got married yesterday. I went to their new house and said" _____ (恭喜) on
    your happy marriage!" to them.
4. You can't be r_____ (无礼)t o your dad. What a shame!
5. Can you give me some _____ (信息) about flights to Beijing please?
6. Yesterday the teacher s_____ the students should do with these old books as soon as possible.
7. The 1998 flood has been one of the greatest d_____ that hit China these years.
8. Rains are f_____ in our area during the rainy season.
9. The boy spends all his spare time playing football. He l_____ playing it.
10. We had to f_____ against the strong winds all the way and it took us longer time to get home.