1. a
2. b
3. c ?
4. a
5. c
6. a
1. Mouse is a device to move the cursor or pointer on a display screen.
2. Because the connecting wire looks like a mouse tail.
3. Mice usually have two buttons and sometimes as many as three, which have different functions depending on what program is running.
4. The mouse was invented by Douglas Engelbart.
5. In 1963.
6. Stanford Research Center.
7. Mice can be:
1. Mechanical with a rubber or metal ball that can roll in all directions. Mechanical sensors in the mouse detect the direction the ball is rolling and move the screen pointer.
2. Optomechanical with optical sensors to detect motion of the ball.
3. Optical with a laser to detect the mouse’s movement. Optical mice have no mechanical moving parts but they are more expensive.
4. Cordless infrared mice send infrared or radio waves to communicate with the computer.
3
1. There are men on bicycles.
2. These stories are very interesting.
3. These children are my sons.
4.
1. Usually the classes begin at 9 o’clock.
2. John is playing a game of tennis. He has been playing for 2 hours.
3. Now Lena is waiting for Dennis at the museum.
The Victory day
The Victory day is celebrated across all Russia on May 9. It passes on the main square the country. The reason of a celebration is that we won against fascists!
In honor of this significant day everyone can watch parade on the square and also there is a concert. Also Vladimir Vladimirovich Putin tells the patriotic speech.
I think that after parade people are proud of the Homeland and the ancestors who so desperately battled for Russia the Mother!
Объяснение:
День победы
День Победы отмечается по всей России 9 мая.Это проходит на главной площади страны. Причина торжества, то что мы победили фашистов!
В честь этого знаменательного дня каждый может наблюдать парад на площади, также проводится концерт. А в Москве Путин говорит патриотичную речь.
Мне кажется, после парада люди гордятся Родиной и предками которые так отчаянно сражались для России Матушки!