Answer — Exercise 5
7.1 - Animal instinct·New Total English Advanced - Students' Book
Question
Do sentences a and b in each pair below have the same meaning? If not, how are they different? Which are wrong?
Answer
- different → a means only those monkeys whose DNA is similar to humans are used in research (other monkeys are not used because their DNA is not similar to humans'); b means that all monkeys may be used because all monkeys have similar DNA to humans.
- b is wrong because it needs to be a defining relative clause, therefore without the comma.
- b is wrong because there should be a comma after seals. It must be a non-defining relative clause (because all seals' blubber is used for fuel and food).
- Both are correct.
- b is wrong. You can't use that to begin a non-defining relative clause.