When deeply lost in thought, _______ he often was, he would forget all about eating or sleeping.
You may depend on __________ that they will be there on time.
The old custom __________ an old country in Europe.
Any normal boy of his age would be __________ with this game.
These children, depending on their age and skating ability, will be first __________ different classes.
Traditions and fashions, like society itself, change and __________ with time.