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staslukutin
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Снеобходимо выбрать правильную видов ременную форму сказуемого.
заранее
1. the abacus … about 5,000 years ago.
a) has emerged; b) emerged; c) had emerged; d) emerges;
2. the first all-electronic computer … by 1940.
a) developed; b) was developing; c) was developed; d) had been developed;
3. in 1694 pascal’s invention … .
a) was improved; b) improved; c) was improving; d) had improved;
4. the transistor … the large vacuum tube in televisions, radios and computers.
a) replaced; b) replaces; c) was replaced; d) was replacing;
5. scientists … to fit even more components on a single chip very soon.
a) will have managed; b) manage; c) will manage; d) ;
6. in 1830 babbage … to build a general-purpose machine.
a) proposes; b) proposed; c) has proposed; d) had proposed;
7. by the early part of the 20th century electromechanical machines … .
a) had been developed; b) developed; c) had developed; d) were developed;
8. data … a day before yesterday.
a) were being processed; b) are processed; c) processed; d) were processed;
9. we … the term “processing” meaning “data processing”.
a) had used; b) are used; c) use; d) were used;
10. processing … operation on data to convert them into useful information.
a) called; b) is called; c) calls; d) has called;
11. the tested method … to correct further errors.
a) will be employed; b) will employ; c) will have employed; d) will be employing;
12. this technique … now to develop a new computer program.
a) is applied; b) is being applied; c) applies; d) has applied;
13. many computer programs … recently.
a) have created; b) had created; c) have been created; d) are created;
14. next seminar our group … the history of computer development.
a) will be discussing; b) will have discussed; c) will be discussed; d) will discuss;
15. by 1951 the census bureau … the first univac computer.
a) was installed; b) had installed; c) has installed; d) installed.

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danilklimenko2
danilklimenko2
4,7(60 оценок)

1. They found the money and jewellery in his pockets. He might be the thief.

2. Tony's phone is switched off. He must be on the plane now, or just boarding.

3. Nigel can't earn much money in his job. He's still living with his parents.

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