Mr. Li will go to Guangzhou by air. His workmates are ______ him off at the airport.

What can I do for you, sir? — It’s so hot now. Could you give me _____________.

Mary, it’s going to rain. Better take ________ raincoat with you.—Well, but I can’t find ________ raincoat I put here yesterday.

Why is online shopping getting more popular? —I think it _________ save a lot of time.

This is not my book. It is .