There is a woman ____（name）Daisy who has devoted all her life to ____（attend）to the homeless children. It's generally recognized that what she has done for children ____（deserve）to be respected by everyone. ____（personal）speaking, her selfless behavior sets a good example to us.

    There was a time when I came across Daisy who ____（invite）to deliver a speech, during which she indicated, “____（take）care of homeless children is just ____ ordinary job, but it doesn't mean that you can look down ____it. Every job is equal. We can't say which one is ____（good ）.” She also said, “Once you set out to do something, you ought to carry on with it to the end, ____ you will gain nothing in the end.”

补全对话。每空一词。

Dave: Hi, Mona! I am going to have a birthday ____. I want to have it on Saturday evening. Can you come?

Mona: Oh, I am going to  ____ my grandfather on Saturday evening.

Dave: What about Sunday?

Mona: I have to take the piano lessons.

Dave: Oh! When are you ____ then?

Mona: Well, Friday is fine.

Dave: Friday? That’s tomorrow! OK. We can have it then. Can you ask Ali to ____    us?

Mona: Sure. When and where shall we meet?

Dave: Near our school gate at half ____ four.

Mona: Great! See you then!

Dave: Bye!

某火力发电厂建厂几年后，原来附近绿茸茸的苔藓植物不见了，其主要原因是（    ）