1.I sounded the a as soon as I saw the smoke.
答案:alarm
2.The birth r is beginning to increase.
答案:rate
3.As we all know,smoking e our health.
答案:endangers
4.My uncle’s illness c us greatly.
答案:concerns
5.Many languages including Chinese are all l languages.
答案:living
6.Let’s m how tall the tree is.
答案:measure
7.Too much p is harmful to children.
答案:pressure
8.Sadly,many animals are in danger of e .
答案:extinction
