Sir, you ________ take this seat. It’s just for the old.

—Look! Is that Mr. Green?—It          be Mr. Green. He has gone to Shanghai.

—What do you mean by this?—No need for you to worry about your money and be angry with me. You ______get it this afternoon.

--Excuse me，Mr. Li,_________ I close windows? It’s cold now.--Yes，you__________

 Don't use water to put out the fire if oil catches fire. As is known, oil ________ float on water.