There are times when not all of us have umbrellas to walk under; those are the times when we need people who are willing to lend _____.
(1) their umbrellas for a wet stranger on a rainy day
(2) his umbrella to a wet stranger on a rainy day
(3) their umbrellas to a wet stranger on a rainy day
(4) their umbrellas to a wet stranger in a rainy day