3. Look at the following rules. Rewrite them using can, can't, have to, and don't have to.
Example: In Venice, you cannot feed the pigeons.
at a dog.
1) In Venice, it is illegal to feed the pigeons.
2) In Scotland, if someone knocks on your door and requires the use
of your toilet, you must let them enter.
3) In Oklahoma, it is possible to be arrested for making ugly faces
can
4) In Samoa, it is illegal to forget your wife's birthday.
5) In Baltimore, Maryland, taking a lion to the cinema is illegal.
6) In Texas, if you are going to commit a crime, you legally must give
24 hours notice to the police. Either orally or in written form.
7) In France, it's illegal to name a pig Napoleon.
8) In Providence, Rhode Island, selling toothpaste and a toothbrush to
the same customer on Sunday is illegal.
9) It is illegal to fish while sitting on a giraffe's neck in Chicago.​

Recently I visited the book exhibition, which was held in the exhibition center "Siberia". There were many visitors. After all, approaching the first of September, it's time to purchase textbooks, atlases, dictionaries, fiction. The selection of books at the fair was huge. You can find classic and contemporary authors, both Russian and Ukrainian languages. Trays speckled with bright, glossy covers. All the books are beautifully decorated, with nice illustrations. Many of the works published in a foreign language. At the fair were taken into account the interests of readers of all ages. For babies — solid, cardboard stories, collections of poems by A. Barto, S. Marshak, and G. Oster. For older children — fantasy and adventure literature. Is in great demand tale "Harry Potter". For the so-called "light fiction" you can buy detectives, they often come in soft covers. These books small size is convenient to take on vacation, on the train. Buy adult historical literature, memoirs of famous people. Quickly sold out various accounting and economic benefits, guidelines for working with a computer, dictionaries and encyclopedias. In addition to book production at the fair was a good selection of stationery: diaries, notebooks, albums, pens, bags, backpacks, pencil cases. Students simply dazzled. There you can buy postcards, table and wall calendars, different colored stickers with inscriptions and pictures. I think that all visitors to the fair found your product and was satisfied with the purchase. Fair — this is interesting, necessary and serious. Make your choice with such an abundance of goods is not easy.

Colonisation of the Moon or other planets in the Solar system might be necessary one day.  People over-use natural resources and sooner or later there will be no gas, oil or coal,  Air and water will be so polluted that people will have to look for homes on other planets.  It wouldn't be desirable but quite possible.  The problem is that the humanity has no technology to travel to other planets and to remain there for ever.  Governments prefer to spend money on weapons instead of inventing technologies to save our planet.  I personally believe that moving to other planets might be a disaster for the people.  They wouldn't be able to survive there.  Sadly enough, there are no suitable planets in the Solar system where we could settle. I wouldn't like to live in the metal box on some dead planet all my life.  Though if we go on the way we do now, Earth will also become a dead planet.