I along the street looking for a place to park when the accident .
18. Whenever we hear of a natural disaster, we feel sympathy ______ the people who have been affected.
17. _______ here in time, he came _______ all the way.
16. After he left college, he was employed in an international company and _______ there ever since.
15. The factory _______ large numbers of tractors to the peasants.
14. The teacher insisted _______ until we finished the work.