—Did you talk back to your mother when you were a child?
—Yes. But now I realize I was wrong.I really regret        that silly thing to my mum.

For our coming vacation, why        going abroad and seeing the outside world?

—It’s too cold today. Would you mind       the window?
—Certainly not. Go ahead.

He wants to have his TV      .

Our English teacher often says to us, “       English well is very important.”

Seeing their teacher         into the classroom, they stopped         at once.

Lily always does what she can        others.

—Would you like       camping with me?
—I’d like to. But I’m busy       my homework.

He often drinks two cups of        water when he comes back.

—Let’s play football on the playground.
—It’s too hot outside. I prefer      at home rather than        out.