History will always （） any intended route and take an unforeseen one instead.

单项选择题The most（）example of water pollution occurred in 1969, when the Cuyahoga River in Ohio caught fire and helped shock America into adopting the Clean Water Act.

A. concrete
B. precise
C. positive
D. notorious

单项选择题They seek to （） the long-term goals for what music education ought to be in our society

A. set out
B. set in
C. set apart
D. set back