Choose the proper form of the verb. 1. Beginning in 1965, the integrated circuit to replace the transistor in machines now called third-
generation computers.
a) have begin b) beginning c) begin d) began
2. Silicon because it is semiconductor.
a) is used b) are used c) will have used d) would used
3. He the machine the Difference Engine because it worked by solving what mathematicians call
“difference equations”.
a) will call b) call c) called d) calls
4. Also in 1962 the first removable disc pack .
a) marketed b) will marketed c) was marketed d) were marketed
5. A trackball a stationary device to the mouse.
a) is related b) has related c) have been related d) will related
6. All these new developments the second generation of computers less costly to operate.
a) maded b) will marketed c) made d) make
1) День поминовения призван увековечить память тех, кто погиб в Первой и Второй мировых войнах, а также всех павших на полях сражений во всех войнах мира.
2) В рамках благотворительной акции "Воззвание маков" (Popy Appeal), которую курирует королевский британский легион, красные маки раздают в октябре-ноябре в обмен на 1 фунт или любое другое вознаграждение, а вырученные деньги идут в фонд ветеранам войн.
Также в эти дни к военным монументам возлагают маковые венки, а во дворах церквей появляются поля памяти из маленьких крестов с маками.
2. My cousin (is looking) for a job, but he (has not found) a job yet.
3. It (has been) impossible for her to feel at home here.
4. What are you (studying) now?
5. They have just (given) you a pay rise.
6. Sophie is busy. She (is knitting) a sweater for her grandson.
7. Have you only ( had) a piece of cake? You (have not eaten) much.
8. People (are planting) carrots and tomatoes now.
9. Are you (going) to plant tomatoes this year?
10. Johnny, who has finally ( found) a new job, (is giving) a big party.
11. How long have you ( been) sick?
12. Have you ( seen) any good movies recently?
13. What are you ( looking) forward to?
14. Nancy (has been looking) forward to this weekend.
15. She (is going) to read Shakespeare and she (is not going) to think about work.
16. Has Mike ( left) for work yet?
17. Have they ( payed) their electric bill this month?
18. How long have you ( known) each other?
19. Your car (is making) strange noises. Is anything wrong?
20. The boy (has done) his homework and (is taking) a karate lesson now.
21. I (am having) dinner with my friends at the moment and I am very happy to see them again.
22. Jay has never (travelled) overseas.
23. We have always (had) a dog and a cat. We love pets.
24. Larry has never ( owned) a sports car.