They usually spend two hours _______ their homework every day.A. do B doing C to do
— Could you do me a favor to take these books to the teachers’ office?—________.
Who is the girl ______ is drawing a picture under that tree?
— How much of his speech do you think you have understood?—________. I wish I had worked harder.
—Have you finished your homework yet?— No, I’ll finish it in ________ ten minutes.
— Do you know ________?— It’s about fifteen minutes’ walk.