-Haven’t we met each other at ________ party?-Yes, but I can’t remember whether it is _________ Christmas when we were in college.
In the 21st century, all nations must take their ________of responsibility for the global safety.
—I have just received another message, telling me I have won a big prize. —Don't jump on it. You ________.
— Do you mind if I leave my car here for a minute? — ________.
By popular consensus, great painters can mix the colours together within a short period of time to get the __________colour.
Marry is no different from any other teenage girl, but she has given enough thought __________ her future career.