Complete the sentences with these words. There are two extra words.
ache • aid • attack • centre • killers
poisoning • waiting
6 I need to get some pain ……………………… for this headache.
7 You have to go to hospital if you get food ……………………… very badly.
8 We were in the ……………………… room for an hour before the doctor saw us.
9 Heart patients usually get pains in their chest, if they are having a heart ……………………… .
10 We learned how to do first ……………………… at school last term.