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географическое положение норильского промышленного узла

ПОМОГИТЕ!!! ПОДОБРАТЬ ПРАВИЛЬНОЕ!!
1) You communicate with your computer with___
a) the pencil; b) the keyboard; c) the ball
2) ____ the monitor allow to see the results of your work?
a) Does; b) Is; c) Have
3) The mouse works by___ it around on a flat surface
a) sliding; b) scratcging; c) smiling
4) Computer technologies save____ time
a) much; b) many; c) none
5) At present computers capable of performing billions of operations a second___required
a) is; b) are; c) was
6) The size of a hard disk is measured in___
a) centimeters; b) megabytes; c) volts
7) Today the word ' electronics' is in___ usage
a) negative; b) rare; c) general
8) People waste a lot of time____ computer games.
a)playing; b) to play; c) play
9)There ___ many hardware pieces in a computer system
a)was; b) has; c) are
10)____ some programs be difficult to remember?
a) Can; b) Was; c) Is
11) Mobile telephone calls___ a wide geographic area
a) cross; b) is crossing; c) was crossing
12) Office clerks___ and greeted each other after the weekend and discussed the weather
a)meet; b) is meeting; c) met
13) ____ secretary is constantly answering phone calls
a) Theirs; b) Their; c) They
14) I ____ like to speak to Mr. Smith, please
a) should; b) would; c) will
15) A mobile phone___ telephone calls.
a) can make and receive; b) can sell; c) can't make and receive
17) Does any office have phones?
a) No, she doesn't; b) Yes, she does; c) Yes, it does
18) It____ necessary for a company to have good equipment
a)were; b)is; c) will
19) There are many different models of mobilr phones in the world
a) yes, you are right; b) No, I can't agree c) This is known some specialists only