18.3 indefinite, definite, zero article 1. A / An / Ø / The investigation into some psychological aspects of a / an / Ø / the English pronunciation. 2. Some determinants of a / an / Ø / the customer satisfaction. 3. A / An / Ø / The old age diversity among a / an / Ø / themen and a / an / Ø / the women. 4. When do a / an / Ø / the foreign-language readers lookup a / an / Ø / the meaning of unfamiliar words a / an / Ø / the influence of task and learner variables. 5. What do a / an / Ø / the bosses do A / An / Ø / Theorigins and functions of a / an / Ø / the hierarchy in capitalist production. 6. A / An / Ø / The atmospheric tape recorder a / an / Ø / therainfall analysis through a / an / Ø / the sequence weighting. 1. An investigation into some psychological aspects of English pronunciation. 2. Some determinants of customer satisfaction. 3. Old age diversity among men and women. 4. When do foreign-language readers lookup the meaning of unfamiliar words The influence of task and learner variables. 5. What do bosses do The origins and functions of hierarchy in capitalist production. 6. An atmospheric tape recorder rainfall analysis through sequence weighing.