If you do not know how to ____you at table in a foreign country, you should copy the host.

The best method to _____ the goal of helping the patients with AIDS is to unite as many sympathetic people as possible.

There was so serious a matter that I had no choice but _________ the police.

—Tom was scolded for coming late for school by the teacher.—         , for he always comes late. 

Yesterday on the way home my father found a new-born baby_____ by its mother, struggling to survive.