Task.Complete the sentences with the correct modal verd (can/may,must,need,mustn’t , needn’t)

1. When you come ..into. the classroom, you can see rows .of desks and a teachers table.
2. There are flowers in. the pots .on.. the window sills.
3. We go ..to. college five days of a week.
4. .At.. 7 o'clock exactly my alarm clock wakes me up.
5. ..On. Thursdays we have an additional class .. of . Computer Science.
6. Alexander leaves ... the college and goes ... home ..by. bus.
7. The teacher writes .on.. the board and we make notes .in.. our exercise books.
8. ..At. seminars you have to speak ..in front of. the class.
9. ..behind/next to. the college you can find a big garden.
10. ..In. our reading room the students can take any book ..from,. the shelf and work .with.. it ..at. the desk.
11. I dont see a desk in the room. - Its built into the bookcase. When you pull this drawer, it turns into a desk.
12. ..across . the hall there are laboratories .with.. monitoring equipment.
13. The teachers table is next to the window.
14. .in.. the middle .of.. the room there is a glass table with documents displayed ..under. the glass.
15. The ideal place for a flat-screen TV .in. my living room is the fireplace.

1) Modern operating systems control usage

system equipment, such as a printer and mouse.

2) From a user perspective, PC-DOS and MS-DOS operating systems

identical, with equal capabilities and a set of system commands.

3) OS / 2 is a DOS-compatible operating system that allows

run programs using the graphical user interface.

4) Additional programs for working with system devices

the equipment was very complex and absorbed a lot of time.

5) The operating system also allows you to run programs such as

simple text editor.

6) DOS - the most common operating system for personal

a computer.

Questions for group discussion:

1) Why do you think Bill Gates, President of Microsoft Company is one of the richest

people on the earth?

2) Ask the students in your group who have experience working with Windows 2003

and Windows 2010 about the advantages and disadvantages of these operational

systems.

Объяснение:

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