This morning I have _______ art lesson. Art is _______ useful subject.
— Would you like some more tea? — _____, please.
— I’m sorry you have missed the bus. It _____ five minutes ago. — What a pity!
Thanks _____ the Great Green Wall, the land produces more crops.
— Could you tell me how to get to Xuzhou Railway Station, please? — ______.
Which do you like _____, apples or oranges?