问题描述：
下面几句英文错在哪里?
1）名词的单复数前后不统一
Exams are necessary because it helps improve ourselves in many ways.
2）时态、语态、主谓不一致
Having family teachers are very common among students.
3）副词位置或选用不当
We also can do something for our parents to show our thanks .
4)表达随意,中国式英语比比皆是
There are a large number of tourists visit Shanghai every year.
1）名词的单复数前后不统一
Exams are necessary because it helps improve ourselves in many ways.
2）时态、语态、主谓不一致
Having family teachers are very common among students.
3）副词位置或选用不当
We also can do something for our parents to show our thanks .
4)表达随意,中国式英语比比皆是
There are a large number of tourists visit Shanghai every year.
问题解答：
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