Hi, Guys!!!, 
Hi, Guys!!!,
Hi, Guys!!!, 
Hi, Guys!,
A.
A. Use for or since in these sentences. Then translate them into your language.
1. Tom has had same computer ………over five years. He ought to get it up-graded.
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2. Come on, you’ve been on the Internet ……….. nearly there hours! I’m dreading getting the telephone bill!
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3. Our computer’s been at the repair shop ……….last week and they still haven’t fixed it.
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4. “Windows” operating systems have been popular ………..a long time.
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5. I’ve been trying to fix my computer ………….nine o’clock this morning.
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6. I’ve had nothing but problems with it ………….the day I installed a CD drive.
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B. Complete these sentences with ever, just, already or yet.
1. My grandmother only got a computer a month ago, but she’s ……….taught herself how to use Word and e-mail.
2. Have you …………tried to repair a damaged disk-drive? It’s not very easy.
3. Dad’s ………..bought a new computer and it’s broken down ………….He’s furious.
4. you finished writing that letter ………….?
5. Why don’t you get a new computer? – A new one? I haven’t finished paying for this one………..!
6. Have you …..…seen a Macintosh computer? – Seen one? I’ve ……..bought one. They’re the best.
C. Match these tenses with the examples given below.
Present perfect: _______________ Future perfect: __________ Past perfect: ____________
a) I had never used a laser mouse before.
b) We have installed a new cable.
c) They’ll have delivered it before 9 o’clock tomorrow morning.
D. Complete the sentences with the right tense: past simple or present perfect. Use the verbs in brackets.
1. Apple _______________________their Macintosh computers in 1984. (introduce)
2. We’re got two computers in our school library but I _____________them only two or there times. (use)
3. Dad _______________________ a 14,400 modem in 1996. He ________________ a new one since then. (buy / not buy)
4. I don’t understand this game very well. You see, I _______________it before. (never play)
5. ______________________ with the computer, Tom? Then switch it off, please. (you finish)
6. Oh, look! Sorry! I ____________________________all your files! (delete)
7. I _______________________ an e-mail from China last night! It ________________from a student at Beijing University. (get / be)
8. Where’s the other joystick? _______________ it? It ________________ here yesterday. (you see / be)
9. Blaise Pascal ____________________in 1662. He _______________a French mathematician who ______________________ the calculating machine. (die / be / invent)
10. You ________________________a very nice picture on the screen, Pepe. But, what is it? (draw)
E. Complete these sentences with for or since.
1. My father has had Windows 95 ________________ it came out, and it still works well enough for him.
2. Apple have been making computers ______________ 1975, but Apple Macintosh computers have only existed _________________ about 15 or 16 years.
3. Laser printers have been on the market __________________ a long time now.
4. I first learnt how to use a computer at school, but I’ve learnt a lot more ____________ then.
5. Come on, James! You’re been on the Internet ________________ nearly two hours. I need to make a phone call.
6. I haven’t been on it _______________ so long! Only ________________ about 9 o’clock.
F. Put for or since with these words and phrases.
1. ________ many years 4. ______ 1998
2. ________ Christmas 5. ______ I left school
3. ________ five minutes 6. _____ a very long time
G. Put the verbs in the future perfect or the past perfect.
1. When I printed the document I found that I (make) ___________________ a lot of mistakes.
2. Before the end of next century, today’s computers (become) _________________ museum pieces.
3. The first time I opened a ZIP program I had a terrible time, You see, I (not use) _______________ a compressor program before.
4. When Charles Babbage presented his “computer”, no one (see) _______________ anything like it before.
5. Next Christmas my sister (have) _____________________ her computer for exactly live years.
6. I’m still paying for my computer: I (not finish) ____________________ paying for it before it becomes obsolete.
7. Tom switched on his scanner but it didn’t work. Then he saw what was wrong, he (forget) ________________________ to plug it in.
8. If you don’t hurry, you (not finish) __________________ your homework before midnight.
P E R F E C T T E N S E S
H. Put the verbs in the correct tense: present perfect, future perfect, or past perfect.
Two friends of mine (1. arrive) ________________________ from the USA this afternoon, and now they (2. go) _____________________ to the hotel to rest. They were tired because the flight (3. be) _____________________ rough and they (4. not sleep) ______________________ at all. They told me that they (5. have) _________________a very difficult journey. Firstly, when they got to Miami Airport, they discovered that they both (6. forget) ____________________ their passports! Can you imagine? They took a taxi home and when they arrived back at the airport an airline employee told them that the plane (7. leave) ___________________ without them! Fortunately, he (8. make) _______________________ a mistake , and the plane was still there.
They (9. Not visit) _________________________ Britain before, in fact, they (10. never be) ______________________ out of the USA before, but by the time they go back next week they (11. see) ______________________ all the most famous parts of London, and, hopefully, they (12. visit) _______________________________ Stratford and Scotland.
H. Complete this dialogue with ever, yet, already, or just.
- Have you ________________ opened a computer case and looked inside?
- Yes, O bought my computer only six months ago, and I’ve _______________ opened the case twice to put in more RAM.
- Well, I’ve _______________ bought a new CD unit, but I haven’t installed it ___________
Can you give me a hand?
- OK. But haven’t you taken the screws out _______________ ?
- No, I haven’t even found the screwdriver ________________
- I’ve ________________ had an idea! Why don’t you ask Tom? He’s good with computer.
- Yes, but has he ______________ installed a CDROM?
- I don’t know. Let’s ask him.
