Which is the best comparison between a speech focusing on a fact and a speech focusing on a value?

What is the meaning of the word checking as it is used in this sentence from the second paragraph of the passage?

What else do you think experts can learn from studying the language of written work? what do you think is the value of studying the language of william shakespeare whose writing is over hundreds of years old?

Identify the sentence in which the underlined word or words are punctuated incorrectly. a) pam was (well prepared) for the debate. b) she had (read three quarters) of the material more than once. c) she has always been (self assured). d) the winner needs a (two-thirds) majority of the votes.