I'm young. I'm only seven ______.A.years olds B. year olds C. years old
In order _______ late, many students get up very early every morning.
We should spend ______ money solving ______ problems.
Would you please _____ the children ______ with snakes?
The students come to school early, but the teachers come ______.
He made a fire ______ himself _____ warm.