—The twins are quite different. Sam is wild while Tom is quiet.—Yeah, Sam is ___________ than Tom.
________of us live on rice. –Yes, you are right. We live on rice________.
My brother’s never been late for school up till now, ________?
--- Excuse me, have you seen _______ umbrella here?--- Yes. Is it _______ beautiful blue one? I saw it here just now.
---I’m sorry to trouble you, Sir?---__________. What can I do for you?
---Why does the boy bring a chair here?---Because the bookshelf(书架) is half a metre __________ his head. He has to stand on it to get the books on it.