Choose the word (rule, regulation, law) to fill in the gaps. Mind the difference between the meanings of these words. NB.
RULE – an instruction that says what people are allowed to do or not allowed to. Rule is not so official as regulation. They may be written down, may be not.
REGULATION – an official rule made by a government (or organization), which is part of a set of rules. Regulations are usually adopted by officials or authorities and written down. They are to control conduct of people or quality of things.
LAW – an official rule that all the citizens of a country must obey; also, a code of behaviour or ethics. Laws are written down and enforced among all members of a state.
1. Many doctors backed plans for a ___ banning all tobacco advertising. 2. New safety ___ have been brought in.
3. There are exceptions to every ___.
4. Newton’s ___ of motion are three physical laws that, together, laid
the foundation for classical mechanics.
5. Grammatical ___ prescribe how words may be used together.
6. Everyone is equal under the ___.

Dear Ben,
Thanks for your letter. It was nice to hear from you. Sorry, I haven't written for so long, because I was really busy. My favourite lesson is English, because I think it is a very helpful subject. You can chat with friends from other country and read a book in English. As for homework, I do it for about 3 hours daily except weekends.  After lessons I go to the  cafeteria, because food is really tasty there.Anyway, I have to go now, because my mum asked me to help her now.
Keep in touch.  Hope to hear from you soon.
Best wishes,
Nikita 

Дорогой Бен, 
за твоё письмо. Было приятно его получить. Извини, я  долго не писал, потому что был очень занят. Мой любимый урок - английский язык, потому что я думаю, что это очень полезный предмет. Мы можем общаться с друзьями из других стран и читать на английском языке. Что касается домашней работы, я делаю её около 3 часов ежедневно, кроме выходных.  После уроков я хожу в кафетерий, потому что там очень вкусная еда. Ну, а сейчас я должен идти, потому что мама попросила меня ей. 
Не теряйся. Надеюсь услышать от тебя ответ в ближайшее время.
С наилучшими пожеланиями,
Никита

1. A bear has got a thin body A bear hasn’t got a thin body. It  has got a fat body 2. Mice have got big eyes. Mice haven’t  got big eyes. They  have got small eyes 3. A dog has got a small head. A dog hasn’t got a small head. It has  got a big head
4. A cat has got a fat body. A cat hasn’t got a fat body . It has got a thin body
5. Elephants have got short legs.  Elephants haven’t  got short legs.  They  have got long  legs.  
6. Sheep have got long tails. Sheep haven’t  got long tails. They  have got short tails.