Complete the sentences with one word in each gap. The first letter is given for you. 0. I attended a two-day first a_ _ (aid) course. 1. Be careful with this knife. You can c_ _ yourself easily. 2. When you get injured, the first thing you need to do is stop the b_ _ _ _ _ _ _ by applying some pressure to the wound. 3. The first s_ _ _ _ _ _ _ of flu are a runny nose, sore throat and a cough. 4. After the operation, the doctor put a b_ _ _ _ _ _ on my leg and I had it changed regularly. 5. I don't like long car journeys because I often feel s_ _ _ in the car. 6. A lot of people do not take a p_ _ _ _ _ _ _ _ _ until a headache becomes really bad.