test
1.The user is aware of the effects of different applications programs but_______ _________________ are invisible to most users.
2.The most important program in the operating system is the ________________ , most of which remains in memory.
3.The original systems program from which compiled programs are generated is_
4. Unix is a _______________________ operating system used in all sizes of computers.
5. Programs that only stay in memory while they are being used are known as ______________________ programs.
6. If you don't have the source code to a program, you can't _______________it to fix bugs or add new features.
7. Some environments operate in _____________________and real-time mode.
8. Some operating systems have ________________________that allows user to use a mouse to click on icons on the screen etc.
9. The ________________________refers to all those applications – such as word processors and spreadsheets – which are used for specific purposes.
10. A computer program designed to be used for a particular purpose, e.g. a word processor, spreadsheets or database program _________
11. A type of application program with an array of cells that is used for calculating formulas__________
12. A list of options displayed on a computer screen___________
13.An application program or collection of programs that can be used in different ways_______
14. A type of computer application program used for typing and editing text documents_________
15. She said, "I am reading." _____________________________________
16. They said, "We are busy."
17. He said, "I know a better restaurant."
18. Betty: "When did you come?" ______________________________
19. Ann said to us: “Shall we go for a walk”.
20.The pupil explained to the teacher that he couldn't come to school that day because he________.
21. Julia said that she__________ hard for the past few weeks and was very tired.
22. Ann begged me not to tell her father what___________ earlier that day.
23. My English teacher wanted to know____________ doing in my spare time.
24.Mark told Nancy that he________ his dog at last.
25.Can you help me?
26.Don't look at me!
27. Stay here
28. Don't look at me
29.Are you listening to me?
30. What are you doing?