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Quizzes, tests, exercises and puzzles for English as a Second Language (ESL), English as a foreign language (EFL), Teaching EFL (TEFL), Test of EFL (TOEFL), English for speakers of other languages (ESOL), Teaching ESOL (TESOL), TOEIC.


1. You should complain if you don't like the food.


2. You should all be ashamed of ________ for behaving like that.


3. You must do the exam in pencil as the papers ________ marked by computer


4. You risk everything if you ________


5. You needn't ________ it.



6. You can't get a clear answer out of him; he just ________ on and on


7. You had better ________ it before you leave


8. You have to ________ a number to speak to someone


9. You might have been killed!


10. You should see yourself ________ the mirror


English Test

1. ESL-EFL Test - 71
2. ESL-EFL Test - 72
3. ESL-EFL Test - 73
4. ESL-EFL Test - 74
5. ESL-EFL Test - 75
6. ESL-EFL Test - 76
7. ESL-EFL Test - 77
8. ESL-EFL Test - 78
9. ESL-EFL Test - 79
10. ESL-EFL Test - 80
11. ESL-EFL Test - 81
12. ESL-EFL Test - 82
13. ESL-EFL Test - 83
14. ESL-EFL Test - 84
15. ESL-EFL Test - 85
16. ESL-EFL Test - 86
17. ESL-EFL Test - 87
18. ESL-EFL Test - 88
19. ESL-EFL Test - 89
20. ESL-EFL Test - 90
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  • Simple Science

    The Screw

    Man's Way of Helping Himself:
    Another valuable and indispensable form of the inclined plane is the screw. This consists of a metal rod around which passes a ridge, and Figure 108 shows clearly that a screw is simply a rod around which (in effect) an inclined plane has been wrapped.

    The ridge encircling the screw is called the thread, and the distance between two successive threads is called the pitch. It is easy to see that the closer the threads and the smaller the pitch, the greater the advantage of the screw, and hence the less force needed in overcoming resistance. A corkscrew is a familiar illustration of the screw.

    FIG. - A screw as a simple machine.


    Chourishi Systems