用方框内所给单词的正确形式填空（方框中有一单词是多余的）

sleep  voice  walk   noise fast  anything

One evening two young men were （1）________ in the street together. They tried to find a chance to steal(偷)（2）________. The clock struck(敲) twelve. Most of the people went to bed. Quickly they came to a house and it seemed that everyone in the house fell （3） ________ . Standing at the front gate, one said in English to the other in a low （4）________ , “You wait here. I’ll go around to the back door and get into the house.’’ Suddenly a dog ran out of the house and barked at them. The two men were very afraid and ran away as（5） ________ as they could. Finally. They stopped at a lonely place. The man said,“It’s not too bad. I didn’t expect that the dog could understand English.”