初3. 英语完型填空

Electricity is important and useful to us.Electricity helps ue live an e_______life in modern time.Can you i_____what life was like hundreds of years ago?At that time,people h_____no TV,DVD player,computer,or vacuum cleaner.They didn't have refrigerators,washing machines or air conditioners,e______.Life wasn't c_____at all.
Electricity is a c_____ tool for us,but it can also be frightening and even d____.You have to pay special a_____ to it.Every year in the world,thousands of people are killed from contact with electricity.Some of these people are k____just like you.The more you know about how electricity works,the b_____you can keep yourself,your friends,and your family safe.