A Her students' expectations. B Her colleague' S timely advice. C Her sympathy with her students. D Her awareness of student' s needs.

A Some species are smarter than human beings. B Extinct species have been re-created by scientists. C Babies of other species are smarter than human infants. D Fewer species are earlier inhabitants than human beings.

A Because it reminds her of her purpose of teaching when something unexpressed occurs. B Because it wakes up her memory of how they have pulled themselves through hard times. C Because it brings back her old and unfashionable image as a young teacher. D Because it records all sacrifices she has made for her students over the years. E E

A The notion of perfect lessons is not well grounded at all. B Good classroom management is essential to flawless lessons. C Kids are unaware of the mistakes their teachers make in class. D Both teachers and students tend to make mistakes in classroom. E E

A Teachers are free to decide whether to quit or continue their jobs. B Don' t easily give up your teaching career considering its significance. C Don' t enter the workforce if you are not prepared with a bigger purpose. D Teachers are able to find jobs that are less demanding yet more rewarding. E E

A Be in charge of B Be dependent on C Have an effect on D Take advantage of E E

A Infants' helplessness when they are born. B Children' S high intelligence when they grow up. C Children' S leap from helplessness to sophistication. D Children' S incompetence in learning and decision-making. E E

A Babies' helplessness at birth is an indication of human intelligence B Other mammal brains are more mature than human brain at birth. C Only intelligent mammals give live birth to their babies. D All animal brains are equally immature at their birth. E E

A Newborns helplessness facilitates the development of parent' s intelligence. B The larger the brain of a species, the larger its social-group size. C Large brain size contributes to better tool use and innovation. D Human beings with large brains are not necessarily smarter. E E

A Why are babies so dumb if humans are so smart? B Why do babies learn faster than other mammal babies? C Why is human' S intelligence higher than that of other animals? D Why is the development of human brains slower than that of other animals? E E