一、
1.It will help you respond quickly to emergencies if you know basic first-aid t____________(技术）.
2.The villagers there were worried and feared the long term effects of r____________(辐射）.
3.It was obvious Mary had broken her leg, because it immediately started to s____________(肿胀).
4.The leaves have yellow areas on the top and u____________(在下面）are powdery orange spots.
5.The headmaster told the students that there might be some m____________(较小的） changes to the schedule.
