Reading · Part 7
A two-minute film of penguins is a sure-fire way to improve a person's mood. There's something about penguins slip-sliding on the ice that seems to make everyone smile, a fact that psychologists have put to good use in their laboratory investigations of mood. (1) .......... Moods, and bad moods in particular, often…
Desbloqueja tots els exàmens, simulacions il·limitades, les 80 fases del joc i molt més.