填空题 Complete the passage, using the appropriate words. I'll never forget the time when I had to give my best friend (1)_______________(first aid/over and over). It was the middle of the day and we were on holiday,(2)_______________(because/so) we decided to go for a walk. We walked for hours and then realized we were lost. (3)_______________(Fortunately/Unfortunately) it was very hot, and we didn't have any water with us. Not long afterwards, my friend started to feel really ill. I didn't know what to do! My (4)_______________(priority/recovery) was to get her out of the sun, so we found some trees and sat down in the shade. I phoned my mum, who came to get us in the car. When we got home, I kept my friend cool by giving her lots of water and letting her rest. I'm happy to say she made a fast (5)_______________(encouragement/recovery)