168. Whenever I met him, _____ was fairly frequent, _____ I liked his sweet and hopeful smile.
Which do you enjoy ____ your weekend, swimming or fishing?
I think this is the very work that we must finish ____ her.
The work he devoted his time to _____ worth praising.
The theory he sticks to ______ to be of no use in our studies.
The man you referred to _____ just now.