He is a successful businessman and he ___ his success more to luck than to ability.
he food ______ us can last a year or so.
Is this the dictionary _____ you are looking________?
If you go to Xi' an, you will find the palaces there more magnificent than commonly _______.
I remember ______ this used to be a quiet village.
Readers can ______quite well without knowing the exact meaning of each word.