Unified State Exam. Tasks 30—36. Goldfish Don't Have a Three Second Memory

Choose the correct word to complete the text. Around strangers, on the _____ hand, the goldfish will often hide.

Choose the correct word to complete the text. In fact, goldfish actually have very good memories for fish. They can be trained to respond various ways _____ certain colours of light; different kinds of music; and other sensory cues.

Choose the correct word to complete the text. If they are fed around the _____ time of day, they also remember that and will anticipate the feeding leading up to that time, which implies they have a very good sense of time.

Choose the correct word to complete the text. Goldfish also have been shown to be able to recognize their masters and even pick _____ favourites.

Choose the correct word to complete the text. Teach them to come when they are young and then release them into the ocean and lakes to grow to adulthood naturally. Better for the environment; less cruel _____ the fish.

Choose the correct word to complete the text. Not only that, but they seem to be able to remember things they are taught as much as a year _____.

Choose the correct word to complete the text. Researchers have successfully taught goldfish to play fetch, push levers, do the limbo, and even _____ soccer.

Choose the correct word to complete the text. Around certain people the goldfish is very _____ with, they will often be much more active when they see the person and even sometimes stop considering the person any sort of threat, including if that person sticks their hand in the water and tries to touch them.

Choose the correct word to complete the text. This has been proposed as a method to cut _____ the cost of raising fish for consumption.

Choose the correct word to complete the text. In one experiment, researchers trained young goldfish to associate a certain sound with feeding time. They then released these fish into the sea. About half a year later, when the fish were fully grown, the researchers broadcast the sound over a loudspeaker and the fish swam from wherever they were in the sea, back to where they were _____.