I. Choose the correct answer. Only one answer is correct.

1. Would you mind _____ , please?

A) To open the window B) Open the window

C) Opening the window D) To the window opening

2. You _____ your seats beforehand if you want to go to Paris on a through train.

A) Had better to book B) Had better book

C) Had to better book D) Had to book better

3. I`m likely _____ very busy tomorrow.

A) is B) -

C) Be D) To be

4. I hadn`t expected Jane to apologize, but I had hoped _____.

A) Her calling me B) Her to call me

C) That she would call me D) That she call me

5. They _____ him because Nick didn`t say that.

A) Must misunderstand B) Had to misunderstand

C) Must be misunderstand D) Must have misunderstand

6. I`d like to know _____ about the incident.

A) Each B) everything

C) all

7. You should have your tooth _____ soon.

A) Be take out B) Take out

C) Be taken out D) taken out

8. Harry succeeded _____ passing the test.

A) At B) in

C) On D) With

9. I really appreciate _____ to help me.

A) You to offer B) That you offering

C) Your offering D) That you are offering

10. The ticket agent said that the plane would be boarding at _____.

A) The gate six B) Gate six

C) Sixth gate D) The six gate

11. I asked for _____.

A) A two coffee B) Two coffee

C) The two coffee D) Two coffees

12. Neither Jim Jack _____ there.

A) Was invited B) Was been invited

C) Were invited D) Were been invited

13. Her house wasn`t _____.

A) A better then ours B) Any better than our

C) Better than our D) Any better than ours

14. The trains run here _____ three hours.

A) each B) every

C) all

15. You _____ to your uncle like that. It was rude.

A) Shouldn`t speak C) shouldn`t have spoken

B) Should speak D) should have spoken

16. The day was _____ that we skipped our lessons and went to the centre to do window-shopping.

A) So beautiful B) Such beautiful

C) So a beautiful D) Such a beautiful

17. He has _____ books on history as my Dad has.

A)Half of B)Half as many

C)A half less D)A half as many

18. The midterm was _____ the beginning.

A) Like B) Same

C) Alike D) similar

19. If you feel that you don`t trust someone, you are suspicious _____.

A) At him B) Of them

C) With them D) On him

20. He felt satisfied _____ he had done.

A)With all the work B) By all the work

C) At all work D) By all work

II. Translate the technical text.

This system is called packet switching (as opposed to circuit switching). In a packet-switching system, the information being transmitted (be it data or digitized voice) is not sent in real time over a dedicated circuit; rather it is stored in a nearby computer until a sufficiently sized packet is on hand. Then a very smart computer seizes a channel heading in the general direction of the destination, and that packet of data is transmitted at very high speeds. Then the channel is released. So, except for some necessary supervisory information (destination, error checking codes, etc.) the channel is 100 percent efficient.

When the distant station gets that message no more than a few milliseconds later, it responds with the necessary handshaking information - again, by , accumulating a packet of data, seizing a channel, and bursting the information out over that channel. Again,100 percent efficient.

III. Write the annotation to the text.

PAPER 13

Date: 2015-12-18; view: 2239