（污染） is becoming more and more serious with the rapid development of industry．
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 then 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 too bad，I didn't expect that the dog could understand English．"
The fish （吃起来） delicious．
The meeting room is on the （八） floor of the building．
Louder， please! I can't hear you （清楚地）．
Steveis is so （粗心） that he often makes mistakes．