补全对话（有两个多余选项）。

Tom: Hi! Lucy! I haven't heard from you for a long time!    1  

Lucy: I started a new job as a computer sales woman six months ago. Last month I

went to Japan. 

   2  

Tom: Wow! Japan!    3   Tell me all about it.

I.ucy: I stayed there three weeks in a big hotel.

Tom:Oh, it must cost lots of money.

Lucy: Yes, but the company always pays for everything.

Tom:    4  

I.ucy: Well actually, Tom, that is the reason why I am calling you now. I need an

assistant.

    Would you like to be my assistant?

Tom: Great 1    5  

Lucy: Tomorrow, if possible.

A. it was great.

B. When shall I start?

C. where have you been?

D. How long have you been there?

E. I'd love to have a job like yours.

F. Don't worry.

G. I don't like to go to Japan.

1.           2.           3.       4.           5.           

工业上以硫铁矿为原料制硫酸所产生的尾气除了含有N₂、O₂外，还含有SO₂，微量的SO₃和酸雾．为了保护环境，同时提高硫酸工业的综合经济效益，应尽可能将尾气中的SO₂转化为有用的副产品．请按要求回答下列问题：

（1）工业制备硫酸时硫铁矿燃烧的设备是______，反应的化学方程式为______．

（2）将尾气通入氨水中，能发生多个反应，写出其中可能发生的任意一个氧化还原反应的化学方程式：______．

（3）能用于测定硫酸尾气中SO₂含量的是______．（填字母）

A．NaOH溶液、酚酞试液    

B．KMn0₄溶液、稀H₂SO₄

C．碘水、淀粉溶液    

D．氨水、酚酞试液

（4）在制各硫酸的过程中，对废液、废热和废渣的处理正确的是：______．

a．污水用石灰乳处理

b．废渣用来造水泥、炼铁

c．设置“废热”锅炉产生蒸气来供热或发电．