marry will never forget the day ,the 14th of july,when sh an

Marry will never forget the day,the 14th of July,when she and her family were (at) a picnic and Ben,her three years old son,ran across the (busy) road nearby.
A truck was coming towards him very (fast).
再问： just then,a large strong man c____ david rushed into the road and help up his hand.
再答： Just then, a large strong man (called) David rushed into the road and held up his hand.