The celebration of Thanksgiving Day has been observed to thank ______.

单项选择题______ can be simply defined as the study of meaning.

单项选择题Which of the following in Manhattan is less attractive to visitors here

单项选择题According to this passage, Manhattan is ______.

单项选择题Which of the following statements about Harlem is TRUE

单项选择题The proper title for this passage should be ______.