根据所给提示完成下列句子，每空填写一个单词。（每题1分）
The family are all c                   (担心)her safety.
Although we hadn’t met for 15 years, I           （辨认）her immediately I saw her in the street.
The whole city was                   (成为废墟)after the earthquake.
We should have a positive __________ （态度）towards life.
Don’t _______ ________(丧失信心) ! You will do it better next time if you work hard.