3.记住　　　　　　　　　　　　 　　　　　4.保持镇静　　　　　　　　　　

30. He c　　　　　　　　 　to death on a fish bone.

29. The driver was still 　　　　　　　(有意识的when the doctor reached the scene of the accident.

28. The nurse put a 　　　　　　　(绷带) around his wounded ankle.

27. Jet planes 　　　　　　　　　(尖锐刺耳的声音) through the air.

26. Soon an a　　　　　　　　　 　came and took her to the hospital as quickly as possible.

25. People fled into the street in 　　　　　　　(恐慌)after two bombs exploded in the building.

24. The police are questioning the drivers who may have w　　　　　　 　the accident.

23. The dog 　　　　　　(咬)him and made his hand bleed.

22. They built the memorial in 　　　　　　　　(为纪念…) of those who died in the war.