—_________T-shirt do you like better, the red one or the blue one?—I prefer the red one.

 —I couldn’t get through to you at home last night. You must have gone out then, ________?  — Yes, I went to the cinema.

---_______ are these apples ? ---Ten yuan . 

People in China used to keep records by putting a number of stones together, ___?

-- ________ does it take you to water the flowers?