【推荐1】________(担心) about the safety of their children, the parents decided to call the police. (根据汉语提示单词拼写)

【推荐2】词性转换
1. immediate adj.立即的；立刻的→ _______ adv.立刻 conj.一……就……
2. alarm vt.使惊恐；使害怕；使担心 n．恐慌；警报；警报器→ _______ adj.惊人的；使人惊恐的→ _______ adj.感到惊恐的
3. extinct adj.已灭绝的→ _______ n．灭绝
4. aware adj.有……意识的→ _______ n．意识
5. concern vt.涉及；让……担忧→ _______ adj.担心的；关切的→ _______ prep.关于
6. adapt vi.适应 vt.使适应；使适合→ _______ adj.适应性强的，能适应的→ _______ n.适应；改编
7. press vt.按；压→ _______ n．压力
8. reserve n.（动植物）保护区；储藏（量） vt.预订；预留；保留→ _______ n.预订；预留
9. observe vt.观察（到）；注视；遵守→ _______ n.观察；注视；遵守
10. beauty n.美；美人；美好的东西→ _______ adj.美丽的→ _______ vt.使美丽，美化

【推荐3】She was c________ that she might miss the turning and get lost. （根据首字母单词拼写）

【推荐1】Everyone is ______ (唯一的) and you don’t have to imitate others. （根据汉语提示单词拼写）

【推荐2】She was very i________in the interview and amazed all the interviewers with her depth of knowledge. （根据首字母单词拼写）

【推荐3】Only a few species are ______(有能力的) of surviving in the extreme cold. (根据汉语提示单词拼写)