A．His background.
B．His property.
C．His belief.
D．His talent.

A．The proof of the pudding is in the eating.
B．Roman wasn't built in a day.
C．Small beginnings can lead to large outcomes.
D．No pains, no gains.

A．Because he has a good memory.
B．Because he believes everybody should be respected.
C．Because his boss requires him to do so.
D．Because he gets a name list of the employees.