? 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)

There is nothing in the world more interesting than sports. He grabs the man and the man is dissolved in it. Sport can be practiced professionally. A person can choose at their discretion any sport.  My favorite sport - it is a struggle. Borba- amazing sport!It is characterized by less use of physical force in the performance of receptions and a wide variety of technical actions permitted. The fight - a very difficult sport. People learn this sport for years, only then pokazatyvayut their skills.

1. This young man (had worked) at the factory before he entered the university.
2. The football match (had begun) by the time I could get to the stadium.
3. I am not feeling well, I (have caught) a cold.
4. After the doctor (had examined) the patient he wrote out a prescription.
5. Her son (has not returned) from school yet.
6. Peter is absent today, he (has fallen) ill.
7. The teacher (had explained) the students their homework before the bell rang.
8. I (had translated) this article by the time you came.
9. Jack has just (gone) to the station to meet his elder brother.
10. The scientist (had finished) this experiment by 5 o’clock yesterday.