Ex. 14 Open the brackets using Passive Voice

1. Text … typically … (print) in black. 2. The actions … usually … (perform) through direct manipulation of the graphical elements. 3. The term GUI … historically … (restrict) to the scope of two-dimensional display screens with display resolutions capable of describing generic information. 4. Most modern general-purpose GUIs … (derive) from this system. 5. Available commands … (compile) together in menus. 6. When … the use of text-based hyperlinks … (develop)? 7. A pointer-based system called Sketchpad … (develop) by Ivan Sutherland in 1963. 8. A Compact Disc … (make) from a 1.2 mm thick disc of almost pure polycarbonate plastic. 9. Before digital imaging … (develop), the traditional method of doing this was to photograph the image three times, using a filter for each colour. 10. The technology … later … (adapt) and … (expand) to include data storage CD-ROM, write-once audio and data storage CD-R, rewritable media CD-RW.

Topic 3. Tenses of an English verb (Active / Passive voice)

Ex. 15 Open the brackets using Active / Passive Voice

1. The prototype for the Internet (create) by the US Defense Department in the sixties. 2. A variety of devices can (attach) to a computer. 3. While she (search) the Internet yesterday, her computer (crash). 4. What kinds of problems she (have) with hardware recently? 5. These PCs (not / make) in the USA. 6. The company (introduce) the first Game Boy in 1989? 7. Browsing the Web (be) very popular. 8. How long you (have) this website? 9. They (export) a lot of equipment from France for two years. 10. Confidential information (steal) from the database by hackers last week. 11. What time this message (send) yesterday? 12. A dot (use) to separate the parts of each identifier. 13. He (work) for IBM since last year. 14. She always (use) a browser program for looking at pages on the Internet. 15. You (want) to virus check another disk? 16. How she (draw) pictures on a computer? 17. Who this program (write) by?

Ex. 16 Open the brackets using Active / Passive Voice

1. Colour printing … (be) the reproduction of an image or text in colour. 2. Colour printing … (involve) a series of steps, or transformations, to generate a quality colour reproduction. 3. The "subtractive" primary ink colours … (be) cyan (a bright blue), magenta (a vivid red-purple), and yellow; which … (abbreviate) as CMYK. 4. Specific graphic processes and industrial equipment … (use) for mass reproduction of colour images on paper. 5. A computer screen … (mix) shades of red, green, and blue to create colour pictures. 6. In 1995 there … (be) fewer than 1,000 web development companies in the United States alone, but by 2005 there … (be) over 30,000 such companies. 7. Ivan Sutherland … (develop) a pointer-based system called Sketchpad in 1963. 8. CD … (be available) on the market since October 1982. 9. From its origins as a music format, Compact Disc … (grow) to encompass other applications. 10. Since the mid-1990s, web development … (be) one of the fastest growing industries in the world. 11. By 2007, 200 billion CDs … (sell) worldwide.