Раскройте скобки и выберите глагол в требуемом залоге: активном или пассивном. 1. electronic devices (help; are helped) people discover new phenomena of nature. 2. the transistor (replaced; was replaced) by vacuum tubes thanks to its numerous advantages. 3. due to transistors all circuit functions (carried out; were carried out) inside semiconductors. 4. electronic devices (use; are used) in scientific research. 5. before the invention of the transistor its function (performed; was performed) by vacuum tubes. 6. the reliability of electronic systems (connect; is connected) with the number of discrete components. 7. semiconductor integrated circuits (helped; were helped) to increase reliability of devices. 8. new types of integrated circuits (have developed; have been developed) lately. !

1 help 
2 was replaced
3 were carried out
4 are used
5 was performed 
6 is connected
7 helped
8 have been developed

1 Ann … when we … back. will not be sleeping, come
2 Mother wondered why … homework? Tom weren't doing his
3 Ann said that they … TV the day before. had not watched
4 She asked if … or standing. he was sitting
5 What … by 7pm tonight? will she have done
6 .… or standing? Is he sitting
7 He said that he … a foreign company. was not working, had not worked (оба варианта верные)
8 What … when your parents arrive? will you be doing
9 I … . am not standing
10 I … the piano tomorrow. shall play
11. Ann … that Tom was not slipping. knew
12 I … . am sitting
13 Why … your homework? aren't you doing
14. We … when Tom arrives. shall be having supper
15 She … that she was speaking on the phone. said
16 He asked us what … . we were doing
17 You are sleeping. Are you sleeping? (см. вопросительное предложение или нет)
18 What …? are you doing
19 Tom said that he … a letter. was writing
20. My brother ... TV from 7 till 9pm tonight won't be watching
21 They … TV now. are not watching
22 The children said that they … their books. were reading
23 They … their text-books. are reading
24. Ann … at the window. was not standing
25 He asked me if … . I was sleeping

1. Lead unhealthy lifestyle

a. It’s easy to get to any part of the city by bus/trolley bus/tram or metro

2. Heavy traffic

b. The sum of money you pay for accommodation, transport, etc. is really big

3. Constant noise

c. There are not many people without work

4. Crowded streets

d. Too many cars

5. High cost of living

e. You can hear too many sounds of different type all the time

6. Convenient public transport

f. The factories, cars produce waste harmful to nature

7. Pollution

g. Too many people

8. Low rate of unemployment

h. To breathe in polluted air, smoke, sleep for few hours…

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