Content Frame
Note for screen reader users: There is text between the form elements on this page. To be sure that you do not miss any text, use item by item navigation methods, rather than tabbing from form element to form element.
Skip Breadcrumb Navigation
Home arrow Common Errors Workbook arrow Grammar arrow 11. Passive voice arrow Paragraph Exercise 2

Paragraph Exercise 2

Fill in the blank with the active or passive voice of the verb in parentheses. Be sure you read each sentence carefully to see whether the answer should be in the past, present, or future tense!

This activity contains 14 questions.

Activity with 14 Questions
In 1968, a less invasive method of sex testing using genetics (use) by international sports committees.  Technicians (obtain) a buccal smear from the inner cheek (buccal region) of each female athlete.   Then, the smears (examine) for the presence of Barr bodies,  or inactive X chromosomes that (appear) as dark bands in the chromosome.   Because only one X chromosome (use) in any cell, the other X chromosome is turned into a dense, dark-staining Barr body.   Barr bodies (found) in any person with more than one X chromosome.   Problems (emerge) with the testing, however.   First, sex (not determine) by chromosomes but by hormones  and (exist) in more varieties than XX (female) and XY (male).   Second, 20% of the tests (fail) to correctly identify the athlete's genotype, giving both false positives and false negatives.   Thus, Barr body tests (reveal) chromosomal patterns alone, not sex.   Finally, since only women athletes (test),  many people (accuse) the sports committees of sexism.  In 1993, the international sports community (abolish) this gender testing. 
End of Activity





Pearson Copyright © 1995 - 2010 Pearson Education . All rights reserved. Pearson Longman is an imprint of Pearson .
Legal Notice | Privacy Policy | Permissions

Return to the Top of this Page