The first write in America to win the Nobel Prize in literature is_____.

单项选择题Which of the following is NOT a type of institution in U. S.

单项选择题The Thanksgiving Day is on_____.

单项选择题_____was called the father of English poetry.

单项选择题According to the author, the passage mainly deals with_____.

单项选择题Conventional computer models of the atmosphere fails to predict such a short-lived tornado because_____.