根据句意,首字母及中英文提示写出正确的单词：
【小题1】Danny and Daniel are brothers , and their _______ ( 妻子 ）are sisters.
【小题2】You should do something to improve the __________(情况).
【小题3】Finally the villagers _______ (意识到) how serious the problem was .
【小题4】-Have you ever been a______?
-Yes, I went to America and Australia last year.
【小题5】He has a big family, so he has many r______.