AIM: To identify grammatical errors in a standard questionnaire.

INTRODUCTION: The AUDIT questionnaire is a useful tool for assessing alcohol intake and its effects. The questions themselves can be asked in different ways, but need to be grammatically correct.

INSTRUCTIONS: For each of the following sets of questions, select the one which is grammatically correct.

Please answer every question before continuing.

FOLLOW-UP: To learn more about this area of grammar, consult a grammar reference book or check online (search for 'English auxiliary verbs', for example).