单句改错。

1. Some people end up failing exams because their low EQ. __________

2. I left the library in such hurry that I left my textbook behind. ___________

3. Comparing to our small flat, Bill's house seems like a palace. ___________

4. I saw she had tears running up her cheeks. __________

5. It'll be real relief when the missing students are found. ___________

6. I picked up my books, glaring at her and whispered angrily. ____________

7. To be honestly, I trust her more than anyone else. ___________

8. Grandma is so helpful and she devotes a lot of her time to care the neighbors. ___________

9. In the classroom we found her seating at a desk, reading. ___________

10. He was in black clothes made of wool for the first time I met him. ___________

含硫的物质在实验室或工业生产过程中可出现下列图示的转化：

（1）实验室中，单质硫是　   　色固体，点燃少量单质硫于充满氧气的集气瓶中燃烧，产生漂亮的蓝紫色火焰，生成物质A．

（2）A是工业排放物中一种主要的空气污染物，也是酸雨形成的主因之一．根据你学过的知识可将A转化成Na₂SO₃，你提供的试剂是　      　溶液．

（3）在硫酸工业中，将A在一定条件下与空气中的物质反应得到B，B与水结合得到硫酸．B与A的组成元素相同，B中硫元素与硫酸中硫元素化合价相同，写出A转化成B的化学方程式：　                 　．实验室测定，B与水结合时温度升高，则反应④为　   　反应（选填“吸热”或“放热”）．

（4）上述物质转化过程中，属于化合反应的是　    　（填序号）．

（5）若回收工业排放物A 32吨，理论上可生产硫酸　   　吨．