1. Pg 219: Explanation to answer 3 should be ' if <past perfect> then <conditional perfect>
2. Pg 210 Answer 7 should not change 'the wooden bench' from qs to 'a wooden bench' => 'change of meaning'
3. Pg 262 Answer 8 incorrectly explains 'was born' rather then 'were born' as in qs.
4. Pg 264 Answer 16, the sentence should not be in bold.