Английский язык..Перевод в косвенную речью

Помогите пожалуйста перевести в косвенную речь два диалога. НА англ. языке.

Mary: Professor, I think you can speak several languages.
Professor: Yes, I'd say about five.
M.:French, I think? And German?
P.:No, neither. I read them well, but have never learned to
speak them.
M.:Italian? Chinese?
P.:No, I am afraid not.
M.:You must be kidding me (обманывать, смеяться).
P.:Not at all. First, there is a language we are using now.
Then there is the language I use in the classroom, in my lectures. Next, there is the speech I use when I go back to my home town. And I have another that I use with my lit-tle daughter, and still another with my dog. Then there's...
M.:But those are all English.
P.:Yes, of course. You speak differently to every person.
Fortunately (к счастью), everybody does all this quite naturally.

Rita: Did you have a nice weekend?
Mary: Yes, I did. I was tired of watching television, going to parties, to the movies and so on. John and I decided to go to Pennsyl-vania University to take part in the discussion on environmen-tal problems.
R.: Oh, really! How unusual! That must have been interesting.
M.: Yes, it was. There were a lot of scientists and politicians. Have you heard about such a firm called «Sanyo»?
R.: Certainly. It is well known for its electronics.
M.: It's one of the first companies to make products that don't pollute the environment.
R.: Oh, my father told us about new heating systems made by this company. They use clean and safe technology.

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