单句改错（10处错误，每句最多有两处，共10分） 小题1:Mary had to shout to make herself hear above the sound of the music. 小题2:If I studied hard at school, I would work in a comfortable office now. 小题3:Over 80% of the 3.6 million people are of Europe origin. 小题4:It rains a lot and that’s why I always carry an umbrella with me. 小题5:Canadian singer and song writer, Alanis Morissette, is used to be in the public eye. 小题6:.In 1983,there were only 200 computers connecting to the Internet. 小题7:We have to take immediate actions or I fear that life on Earth will get worse. 小题8:I wonder what Cathy is up to do this weekend. 小题9:The history of the city, which has a warm climate with a plenty of sunshine, goes back to 650 years. 小题10:We were suggested that the argument was dealt with through peace talks.