1)went
2)washed
3)worked
4)got,had
5)went,was
6)was
7)went
8)had
9)went
10)visited
11)eated
12)had
13)were
14)visited
15)road
16)rained
17)saw
18)cleaned
19)finded,opened
20)wrote
21)traveled,liked,was,were
22)was
23)was
24)raed
25)had
26)does
1. a
2. c
3. b
4. a
5. a
6. b
7. c
8. c
9. a
10. b
11. b
12. a
13. b
14. a
15. a
16. c
17. b
18. c
1. Someone was here last
2. Was invented. Invented it
3. Have read, haven't been brought
4. Have spilled, have been broken
5. Have been sent, has been sent
Упр. 1
<span>I. Some blind and partially sighted people </span><u>use</u> (Present Simple, Active) computer-based technology <span>to gain (инфинитив) access to printed information.
2. In 1997, a new technology <u>emerged</u> (Past Simple, Active) that </span>brought <span>(Past Simple, Active)</span><span> digital sound and video into homes over the world.
3. Since 2006 another revolution with the introduction ofBlu-ray Discs <u>has taken</u> (Present Perfect, Active) place.
4. Users <u>will </u></span><span><u>be</u> (Future Simple, Active) able to connect (инфинитив) to the Internet via Wi-Fi.
5. Minicomputers <u>are becoming</u> (Present Continuous, Active) less </span><span>popular as microcomputers improve.
6. We <u>have been solving</u> (Present Perfect Continuous, Active) the problem since </span><span>1993.
7. Up to this point we <u>have been discussing</u> (Present Perfect Continuous, Active) information retrieval in genera! terms.
8. Two keys <u>are</u> usually <u>employed</u> (Present Simple, Passive), one to encode (инфинитив) and the other to decode (инфинитив) the information.
9. The separate elements of the building <u>have been manufactured</u> (Present Perfect, Passive) at different factories.
10. Computer Security techniques <u>are being developed</u> (Present Continuous, Passive) to protect (инфинитив) single computers from accidental or intentional invasion of data </span><span>by unauthorized individuals.
II. Science <u>is</u> (Present Simple) the means by which the hole of our civilization <u>is</u> rapidly <u>being transformed</u> (Present Continuous, Passive).
12. The new device <u>will have been tested</u> (Future Perfect, Passive) before the chief engineer comes.
</span>*****************************************
упр. 2
<span>SMS </span><u>was created</u><span> (Past Simple, Passive) during the late 1980s </span><u>to work</u><span> (инфинитив) with a digital technology </span><u>called</u><span> (причастие II) GSM (global system for mobile communications), which </span><u>is</u><span> (Present Simple) the basis for most modem cell phones.
The Norwegian engineers who </span><u>were inventing</u><span> (Past Continuous Active) it </span><u>wanted</u><span> (Past Simple Active) a very simple messaging system that </span><u>worked</u><span> (Past Simple Active) when users' mobile phones </span><u>were turned off</u><span> (Past Simple Passive) or out of signal range.
Most sources </span><u>agree</u><span> (Present Simple Active) that the first SMS message </span><u>was sent</u> (Past Simple Passive) in the UK in 1992.
<span>As SMS <u>was born</u> (Past Simple Passive) in Europe, it <u>is</u> </span><span>(Present Simple) not surprising that it </span><u>took</u><span> (Past Simple Active) a little longer </span><u>to make</u><span> (инфинитив) its way to the United States.
Even today it </span><u>is</u><span> (Present Simple) much more popular in Euгоре.
A July 2005 study </span><u>found</u><span> (Past Simple Active) that 37 percent of U.S. mobile phone owners </span><u>had sent</u><span> (Past Perfect Active) or </span><u>received</u> (Past Perfect Active) at least one text message in the previous month.
I have two sisters
My sisters are students
We are at home
My brother isn't at home , he is at school
My mother is at work. She is a doctor
I am not a doctor
I have no sister
He isn't a pilot
I have thirty -two teeth
He has a child
She has two children
Her children are at school
Is your father at home? No, he isn't at work
Where is your brother? He is at home