纠正下列句子的错误!

题目

纠正下列句子的错误!
1.It rained a lot this summer,since we didn’t have to water the flowers in the garden.
2.The student didn’t quite understand the teacher’s point; however,he asked him to repeat it.
3.Although he was very tired,but he tried to finish his work on time.
4.He had a terrible journey this morning.He was hold up in the traffic for an hour.
5 I couldn’t believe that the first paper I writed in college was so terrible.
6.All my classmates feeled very excited when our team won the basketball match.
7.I have decided to major in computer science,and I was sure that this is the right decision.
8.By the time we arrived at the airport,the rain has already stopped.
9.The young man knocks his head on the glass door of the hotel when he hurried in.
10.He wants to tell him that the tape-recorder is belonged to him.
11.Mr.Li was failed because he did not work hard.
12.Everyone of them was seemed tired and wanted a good rest.

答案

1.since--so
2.however--so
3.去掉although或but中任意一个
4.hold--held
5.writed--wrote
6.feeled--felt
7.is--was
8.has--had
9.knocks--knocked
10.is去掉
11.was failed -- failed
12.everyone--each ,was seemed--seemed