4 . Recently it has been noticed _____ an increasing number of students are bringing smartphones to school, _____ means using smartphones reasonably has become _____ unavoidable topic for us students.

A．/; that; a

B．that; which; an

C．/; which; an

D．that; which; the

6 . 以下每个句子只有一处错误，每处错误仅涉及一个单词的增加、删除或修改。
增加：在缺词处加一个漏字符号(∧)，并在其下面写出该加的词。
删除：把多余的词用斜线(\)划掉。
修改：在错的词下划一横线，并在该词下面写出修改后的词。
1. Gone through a miserable childhood, he lives a happy life now.
2. To be frankly, I don’t know what you said just now.
3. In our daily life, we should have a balance life.
4. The magician must keep people from noticing the secret of his equipments.
5. Although many years have passed, the small town still has many of its origin buildings.
6. Many measures should be taken to protect cultural relics from dying off.
7. In average, people who don’t smoke are healthier than people who do.
8. Only at that time did I knew I was wrong.
9. I’ve read many books, in which I benefit a lot.
10. Apart the school, the village has a clinic and many small shops.

10 . 下列每个句子错误的地方已经标注出来，在句子后面的括号内写出正确的用法。
1. The reason why he is late again is because he gets up late again.
2. All the people who get involved ^the accident will be punished.
3. If we can participate in the game depends on the weather.
4. He said that he has spend 400,000 yuan on the house.
5. Apply oil to the injured area is a bad idea,which can keep the heat in the wounds may cause infection.
6. As far as I’m concern, I sincerely hope that everyone can make use of mobile phones properly.
7. Hear the news, they immediately set off for Shanghai.
8. One of the most largest shopping mall in North America is in Edmonton.
9. Water consists in oxygen and hydrogen.
10. We should know some knowledge about first aid, that can help us to save someone’s life.