We _______on our project day and night in the past two weeks.
The meal over, the managers went back to the meeting room to _______ their discussion.
Though having lived abroad for years, many Chinese still _______ the traditional customs.
—I can’t repair these until tomorrow, I’m afraid.—That’s OK, there’s _______.
Most parks in our city are free. They don’t charge money for ________.
The school dinning room _______ as a meeting place for teachers and students.