What sentence is the thesis in chapter 5 of freakonomics: what makes a perfect parent?

Which of the following would not appear on a term calendar? a. soccer practice c. 1st soccer gam b. soccer tryouts d. last soccer gam select the best answer from the choices provided

Which sentence best contrasts two things? a. air travel, like bus travel, is a fun way to get from one place to another. b. air travel is a fun and relatively easy way to get from place to place. c. both bus travel and air travel require substantial planning. d. air travel is much more expensive than bus travel.

Which word from the stanza can you use as a clue to determine the meaning of the word vales ?