— Did you hear the quarrel just now?
— _____ I did.

It is most________that the environmentalists will come to the area to investigate the possible damage
caused by the serious pollution.

They are discussing the problem right now. It will ______ have been solved by the end of next week.

The man was just about to stand up ____ someone sat on the edge of his overcoat.  

He knew the problem was serious and promised to look into it ____ he reached office.

I think I was at school,      I was staying with a friend during the vacation when Iheard the news.

Not having enough green food leads to poor health and, ______ , sickness.  

______, our ears are accustomed to sounds between 40 to 50 decibels. But in the settings like a KTV,
the volume usually goes up to 80 to 90 decibels, which can cause damage to the ears.

短文改错
     假如英语课上老师要求同学们交换修改作文， 请你修改你同桌写的以下作文。文
中共有10处语言错误， 要求你在错误的地方增加、删除或修改某个单词。
增加：在缺词处加一个漏字符号（∧），在其下面写上该加的词。
删除：把多余的词用斜线（\）划掉。
修改：在错的词下划一横线，并在该词下面写上修改后的词。
注意：
      1. 每处错误及其修改均仅限一词。
      2．只允许修改10处，多者（从11处起）不记分。
     As an ancient Chinese saying goes, “He who travels far knows many.” In my opinion,
modern life is impossible without travelling. For me, there are two kinds of travelling attract me
a lot. Travelling on foot bring me many benefits, it can make me enjoy my holidays and many
different life styles, knowing other culture. In addition to, reading is other kind of travelling. It
can bring me to places where I can not go for the time problem. The places I have been to and
the places I only travel on books both impress a lot on me. Now would you like to share me
with your experience of travelling? Looking forward to your story.
__________________________________________________________________________

At first he didn’t agree with anyone, but _____ he changed his view.