【单选题】

George Washington proclaimed a NationalDay of Thanksgiving in 1789, (36) some were opposed to it. There was (37) among the colonies, (38) feeling the hardships of a few Pilgrims did not (39) a national holiday.And (40) , President Thomas Jefferson laughed (41) the idea of having a day of thanksgiving.

(42) was Sarah Josepha Hale, a magazine editor, whose efforts eventually led to (43) we now recognize as Thanksgiving. Hale wrote many editorials championing her (44) in herBoston Ladies’ Magazine. (45) , after a 40-year (46) of writing editorials and letters to governors and presidents, Hale’s obsession became a (47) when, in 1863, President Lincoln proclaimed the last Thursday in November as a (48) day of Thanksgiving.
Thanksgiving was proclaimed by every president (49) Lincoln. The date was changed a (50) of times, most recently by Franklin Roosevelt, who set it (51) one week to the next-to-last Thursday in order to (52) a longerChristmas shopping season. Public uproar (53) the decision caused the president to move Thanksgiving (54) to its original date two years later.And in 1941, Thanksgiving was finally sanctioned byCongress as a (55) holiday, as the fourth Thursday in November.
A．with
B．in
C．to
D．at