Fill in the Blanks Exercise
Instructions: Listen to the text and fill in the blanks.
Scientists have found the of a strange sound coming from the deepest part of the . The noise, called "biotwang," was first heard in . After many years of study, researchers finally that it was coming from a type of called Bryde's whale. These whales use a special to communicate with each other. The sound is very , like something from a movie. Scientists listened to many recordings to that the whales made this .
