1. 用方框中所给单词的适当形式填空。

be proud of   it   continue   energy   twenty   gentleman

1. （1） We got together to celebrate our son'sbirthday.
3. （2） Ladies and, may I have your attention, please?
5. （3） We Chinese Tu Youyou's winning the Nobel Prize in medicine.
7. （4） Although it was raining hard, weto have our match on the playground.
9. （5） As for the table manners, each country hasown culture.