Not unti his fellows criticized him _______ to admit his mistake.
These shoes look very good. I wonder __________.
He spoke proudly of his part in the game, without mentioning ________ his teammates had done.
One advantage of playing the guitar is _________ it can give you a great deal of pleasure.
--- What did your parents think about your decision?--- They always let me do _______ I think I should.
See the flags on top of the building? That was we did this morning.