1．时态错误

Many people thought that the Internet will be more useful in the future.

2．语态错误

1)        I have excited several days at the news that you will come here.

2)        Most of the students satisfy with the service in the dining hall.

3．单复数错误

1)        Wise man seek opportunities rather than wait for them.

2)        Someone are afraid that computer may control men in the future.

4．非谓语动词错误

1)        Let me to represent everyone to say “hello” to you.

2)        Do exercise in the morning is good for one’s health.

3)        Having studied in our school for 3 years, the canteen service has changed a lot.