"If I am not sure of the answer, should I guess?
If you are not sure of the answer, you should guess. The number of incorrect answers is not subtracted from your score. Your score is based upon the number of correct answers only. Do not mark more than one answer for each question. Do not leave any questions blank on your answer sheet.
How should I guess?
First, eliminate all of the possibilities which you know are not correct. Then, if you are almost sure of an answer, guess that one. If you have no idea of the correct answer for a question, choose one letter and use it for your 'guess' answer throughout the entire examination. By using the same letter each time that you guess, you will probably answer correctly 25 percent of the time. This percentage is usually better than the percentage of correct answers obtained by random guessing."
Pamela J. Sharpe: Basic tips on the Test of English as a foreign language, TOEFL
Barron's Educational Series Inc., Hauppage (NY) - 1982
catalogazione: libreria di fianco al computer