time which with. 3. Complete the sentences with the word combinations below. excellent knowledge minister of education . poor knowledge future career university hotel staff teaching career Useful La . 1. He knows that will never help him study at the university. 2. The parents were pleased with their daughter's ... in geography. 3. The did everything possible to make our stay there pleasant and unforgettable. 4. She was going to devote her to music. 5. The said a serious reform was needed in this sphere. 6. Her lasted fifteen years. 7. Lots of my classmates want to study at... after finishing school. . Home

Who is it?Who is saying "Meow"?Simon is in the livingroom. In livingroom well. There is a circle table in the middlee of room. There is a big armchair near the fireplace/ Simon likes to read an interesting books in armchair, when it is cold."Meow! Meow!" Now he is searching sound under the table, behind the armchair, between the armchair and sofa."Nothing!". Simon is in his room. He is still searching sound on the floor, under bed, above shelf, under the carpet. "Nothing!". And he is still searching sound in left angle, in right angle. Simon surprised. "meow! Meow!" is exiting the box. "Who are you?" Simon is saying. "What is it the window?"It is a secret.Then he is seeingtwo black ear,two big green eyes and small pink nose. "Oh! It is a kitten!" Simon is saying.He is happy. He get a new friend. They will play hide-and-seek together.

The user is aware of the effects of different applications programs but operating systems are invisible to most users. They lie between applications programs,such as word processing, and the

hardware. The supervisor program is the most important. It remains in memory,therefore it is referred to as resident. Others are called non-resident because they are loaded into memory only when needed. Operating systems manage the computer's resources, such as the central processing unit. , they establish a user interface, and execute and provide services for applications software.Although input and output operations are invoked by applications programs, they are carried out by the operating system.

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