Прикрепите фото. А так, конструкция довольно простая: само предложение + doesnt/didnt/wont/etc. Нужно знать конкретный пример.
1. How has the firm's development been influenced by this strategy? - я думаю этот вариант верный
1.This is the coat his wife.2. It is John's copy book. 3.My mum's friend is accountant. 4.Whose garage?- It is my neighbor's garage.5. Did you see my brother's new office?6. Our neighbor's dog is walking in the yard.7. Our friend's things is in the yard.8. Student's books are laying there.9. My friend's dad is director of school.