The key answer of exercise 4
The key to exercise solutions in chapter 9.3 - It could be because ... for the textbook Speakout Pre-Intermediate - Students' Book with authors Antonia Clare and J. J. Wilson from Pearson Education
Question
Listen to two people discussing the questions in the quiz. As you listen, make a note of the correct answers.
Answer
- Rats are used to rescue people. They can move in small spaces and they have a good sense of smell, so they can find people.
- Abandoned dogs are taken to prisons and then the prison inmates take care of them until the dogs are adopted.
- Dolphins are used to protect areas of water. They can detect swimmers who shouldn't be there.
- Gerbils can smell people's adrenaline when people are excited, scared or angry. The airport security bosses hoped the gerbils would smell terrorists or other criminals in airports.
- Seals can dive deep down into freezing water. Scientists can attach research equipment to the seals' bodies.
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