--- Must I stay at home, Mum?--- No, you_____

We used to work in the same office and we _________ have coffee together.

--Has Mr. White arrived, Tom?--Yes, sir. _____ he come in to see you right now?

—Whose workbook is this, Tony?—Look! Ann's name is on it! It ______ be hers.

－ Do you think the English class is _____________?－ Yes, I enjoy it very much.