Passage 3 Listen to the passage three times and complete the following paragraph with the words or expressions you hear. A scientist 1) made tests with different animals to 2) which was the 3) . In one test the scientist put a monkey in a room. There are several boxes in the room. Some boxes were 4) . One small box had some food in it. The scientist wanted to find out how long it would 5) the monkey to find the food. He left and waited a while 6) . Then he put his eye to the 7) . 8) , he found himself 9) the eye of the monkey. The monkey was on 10 the door, looking at the scientist through the keyhole.