阅读下列短文，从文后各题所给的四个选项中选出一个最佳答案。
Hearing is very important to all of us. We can 1beautiful music, nice songs of birds, the laughter of people or other different kinds of 2 in the world with our ears. 3 we must try to protect our ears. The following will tell you 4 protect ears.
Listening to 5 usic a lot can be bad forears, especially when headphones are used. So 6 the volume(音) when you're wearing headphones or try not to wear headphones. You should give your ears a rest if you like wearing headphones.
Before swimming, remember 7 earplugs （耳塞) into your ears or wear a swim hat to stop water from getting into your ears.
If you are going to a concert, wear earplugs to protect your ears 8 the terrible music! In fact, special earplugs can be made for you if you go to concerts a lot or if you are a musician yourself.
See a doctor if your ears 9. Take some medicine if the doctor asks you to do so. Follow the advice above now and you won't be saying"what?"when you are getting 10.
