5 9.6.13.1 Study the examples. Then, rewrite
the sentences using the modals in bold.
He must have left by now. (I'm sure he left.)
They are late. They may/might have lost their way.
(It was possible.)
He can't have eaten the whole cake. (I'm sure he
didn't do it.)
You should have booked a table. (but you didn't.)

1 I'm sure she didn't do the shopping. (CAN'T)
2 I'm sure Mum bought us some doughnuts.
(MUST)
3 They wanted to buy a cake for his birthday
but they didn't. (SHOULD)
4 It was possible that she had left the
invitation at home. (MAY)
5 I'm sure the decorations cost a lot. (MUST)
6 He isn't feeling well; he ate too many
sweets. (SHOULDN'T)​

Education is an important part of morden life. Children start going to school at 6 or 7 . Russian school has got 3 levels of education . They are primary , secondary and high school . Weel, at primary school children have got a lot of tests . The primary school curricluman includes Russian , Maths , PT and Music.
As for my school , my school is a co-education state school. We have a lot of different subjects such as History , Russian , English, Maths and many others . Many students live nearby and others come to school by bus. Classes begin at 8:00 am and end 2:05 pm .
In our school there are rules , one of them wearing school uniform. But many don't follow this rule

At present mobile phones have become ingrained in our everyday lives and the majority of people can hardly imagine themselves without cell phones. Is it just a tribute to fashion or a necessity of a modern person? It isn’t a secret that today many people feel quite helpless if they have left their mobile phones at home. First of all cell phones give us an opportunity to keep in touch with people in any place and in any time (it’s especially important for businesspeople). Besides, modern mobile phones are multi-function: they provide access to the Internet, have various games, cameras, memory sticks, etc.