Mike apologized for _______ to inform her of the change in the working plan.
She devoted herself __________ to her research and it earned her a good reputation in her field.
This magazine is very __________ with young people, who like its content and style.
It took building supplies to construct these energy-saving houses. It took brains, too.
The incomes of skilled workers went up. , unskilled workers saw their earnings fall.
______ and short of breath, Andy and Ruby were the first to reach the top of Mount Tai.