Read the text and fill in the gaps with the right words.

Every year on the fourth Thursday in November ... the so-called Thanksgiving. ... . In November, 1621, they sat down to eat together and to give thanks to God for enabling them ... of their first year in America.
Pilgrims ... by Amerindians. The people of the near forests ... the Pilgrims and shown them the best place to catch fish. Later the Amerindians had given seed corn to the English settlers and shown them ... that would grow well in the American soil. Without them there would have been no Thanksgiving.