If you _____ smoke, please go outside because this is a non-smoking office.

—Where will you start your work after graduation?—Mmm, it's not been decided yet.I________continue my study for a higher degree.

—What do you think we can do for our aged parents?—You ____ do anything except to be with them and be yourself.

 ---The book _____ be Tom’s.---No, it _____ be his. There’s a name on the book. It’s Jim’s.

 --- I saw the Smiths at West Beijing Station this afternoon.--- You __________. They are still on holiday in Hawaii.