Раскройте скобки и прокомментируйте выбор падежной формы существительного:
1. (The plane + safety) was not proved.
2. (For + convenience + sake) he decided to travel light.
3. (Birds + killing) is barbarous.
4. (Delegation + arrival) was unexpected.
5. No one managed to swim (five miles + distance) in such nasty
weather.
6. (Bride + bridegroom + their relatives) luggage was so bulky that
they had to hire another car.
7. (Boy + Smith) broke a leg.
8. You'd better go to (nearest + greengrocer).