The expressions they use might whom they are speaking to or how well they know each other.
China has the _____ population in the world.
—David has made great progress recently. —_____, and _____.
Now most families have only one child _____ our country’s one-child policy.
—Can you write the number eighty-five thousand, six hundred and twenty-six?—Yes, it is _____.
This is the most beautiful park I have _____ visited.