The user is aware of the effects of different applications programs (1) but operating systems are invisible to most users. They lie between applications programs, (2) such as word processing, and the hardware. The supervisor program is the most important. It remains in memory, (3) therefore it is referred tо as resident. Others are called non-resident (4) because they are loaded into memory only when needed. Operating systems manage the computer's resources, (5) such as the central processing unit. (6) In addition, they establish a user interface, and execute and provide services for applications software (7) although input and output operations are invoked by applications programs, they are carried out by the operating system.
Во-первых, когда время Past Simple.
а во-вторых с they, we, you
I think it is very special because this animals are very beautiful. It is cool to have a dog than cat I think. I Like Dogs
4 a. 1. Coldest, 2. The most expensive, 3. Smallest, 4. The most intelligent, 5. The most popular, 6. Oldest, 7. Shortest.
4 b. 1. The most expensive car in the world is Mercedes CLK/LM. It costs $1.5m. 2. The shortest day of the year is December 21st. 3. The oldest university in the world is in Morocco. It opened more than 1000 years ago. 4. The gorilla is one of the most intelligent animals in the world. It can use sign language. 5. The most popular boy's name in the USA is Michael. 6. Antarctica is the coldest place in the world. 7. The smallest planet in our solar system is Pluto.
My name Vanya.I am eight years old.I learning at school