单项选择题A．In the student’s own words.B．In direct quotations.C．In short phrases.D．In shorthand.

单项选择题A．Parent and child.B．Boss and employee.C．Classmates.D．Teacher and student.

单项选择题A．It changes the body’s metabolism through rapid weight gain.B．It tricks the body into responding as if it were in a different time zone.C．It promotes increased alertness by adding snacks to the diet.D．It builds resistance to illness by increasing intake of vitamins.

单项选择题A．Slavery was abolished.B．The Union was split and the Civil War began.C．The United States of America was founded.D．He was shot to death.

单项选择题A．He had a surfing accident.B．He changed the way he looked.C．He spent some time studying.D．He found a new hobby.