完形填空

    The world has many beautiful 1. We can hear the songs of birds and the laugh of people. We can listen to cool music and news reports. And it is all because of our ears! They 2 us a world of sounds.

    But some people can't hear any sound at all. Some are born deaf. 3can hear well in their childhood, but too many loud sounds hurt their ears later on.

 Many people in China can't hear ordinary sounds clearly. A large number of them are children. Most of them are born 4 good hearing. But six children out of every 1,000 have hearing problems when they are born.

    A lot of things can5 hearing problems. And noise louder than 85 decibels(分贝) can hurt our ears and make us lose our hearing for a short time or even forever.

Hearing is important. So we should do our best to give our ears special care. Don't forget to do the following:

    Try to 6 places with too much noise. When 7, remember to put earplugs into your ears to stop water from getting in.

     Never put 8 sharp (尖锐的) into your ears. Keep these things in 9! Then you won't 10“What? What?” when you are older.

山东蓬莱农民唐和恩使用过的竹棍上，刻着他在解放战争时支援前线所经过的战线，包括山东。安徽。江苏三省有关的城镇和村庄的地名。由此可判断，他支援过下列哪次战役（    ）