30．Success in life doesn’t happen　　　　 . It’s the result of devoting your time and energy to what you’ve set out to do.

　　　　 A．by force　　　　　　　　　　 B．by design　　　　　　　　 C．by accident　　　　　　 D．by choice

29．It is a truth　　　　 acknowledged that when one has gained material wealth, he’ll surely seek for spiritual enjoyment.

　　　　 A．partly　　　　　　　　　　　　 B．universally　　　　　　　 C．particularly　　　　　　 D．previously

28．Letters to the editor must carry the writer’s full name, which indicates that writers are held 　　

for what they say.

　　　　 A．considerate　　　　　　 B．reasonable　　　　　　　 C．independent　　　　　 D．previously