---May I speak to your manager Mr.Willians at five o'clock tonight?"---"I'm sorry, Mr.Williams _______ to a conference before then."
Of the two coats, I’d choose the __________ one to spare some money for a book.
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.