It was his mother ______ made a promise to send her son to the best middle school.

(单选题)What kinds of people are in high demand on the job market? (单选题)What message is the speaker trying to convey? (单选题)What do we learn about Pete Gentry? (单选题)Why does the passage tell us about firefighters Eric Velez? (单选题)Why do some children trapped in a burning building hide from (单选题)What is not the firefighter’s purpose of giving informative (单选题)Which of the following statements is NOT true? (单选题)The passage tells us ______. (单选题)The problem of unemployment will arise ______. (单选题)We can safely say that rent control ______.