根据所给提示完成下列句子，每空填写一个单词。（每题1分）
小题1:The family are all c                   (担心)her safety.
小题2:Although we hadn’t met for 15 years, I           （辨认）her immediately I saw her in the street.
小题3:The whole city was                   (成为废墟)after the earthquake.
小题4:We should have a positive __________ （态度）towards life.
小题5:Don’t _______ ________(丧失信心) ! You will do it better next time if you work hard.