As a scientist, Madam Curie devoted herself ________ to her research and that was why she was given two Nobel Prizes.

is no intrying to persuade him to change his mind, for he never follows the advice ofothers

The story showed marriage between people of different races ,_____ was against the law at that time.

Victor apologized for ______ to inform me of the change in the plan.

should not be allowed to drive.