Part Five: Directions: In this section, you will hear a passage three times. When the passage is read for the first time, you should listen carefully for its general idea. Then listen to the passage again. When the passage is read for the second time, you are required to fill in the blanks. Finally, when the passage is read for the third time, you should check what you have written. ...memories has to be one of the most important of all scientific 30) ______.