1) a discovery about human mental processes? a) A b) B c) C d) D 2) a work that solved a problem using mathematics? a) A b) B c) C d) D 3) a work that appeared in a magazine for doctors? a) A b) B c) C d) D 4) an experiment that didn’t use humans? a) A b) B c) C d) D 5) a problem that somebody wanted to solve because it often happened to them? a) A b) B c) C d) D 6) an invention that tricks people? a) A b) B c) C d) D 7) a problem for new members of a profession? a) A b) B c) C d) D 8) research that may help language learners one day? a) A b) B c) C d) D

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