—Do you know that China is one of_________countries in the world? —Yes, I do. It’s much________than the U.S
—Do you know ? —Yes, in two days.
We usually the moon and share mooncakes with families on Mid-Autumn Day.
The more careful you are, mistakes you’ll make.
The expressions they use might whom they are speaking to or how well they know each other.
— What did Tina say? — Sorry, I didn’t what she said.