At the World Literacy Center, an organization that works to help people read, the helpers work hard, enabling them to successfully reach their goals（）.

单项选择题The dichotomy postulated by many between morality and interests, between idealism and realism, is one of the standard clichés of the ongoing debate over international affairs（）.

A．division into two parts
B．combination of two parts
C．disparity
D．contradiction

单项选择题Most of us think of sharks as dangerous, owing to lack of information rather than fear（）.

A．due to
B．because
C．as
D．for