---Did you notice Tom was busy all day in his office?---Oh, yes, he has just finished his business tour of Chicago. He has a lot of work to ___.
Helen always helps her mother in the little store, and it most of her day.
It’s the present situation in poor areas that much higher spending on education and training.
--- Do we have to wait for him? --- No, it no difference whether he will come or not.
He was afraid the yard because he was afraid by the brown dog lying at the gate.
--- You haven’t been to Beijing, have you? --- How I wish to go there!