How did you get the MP4, from a shop or by phone? —-________. I always like shopping online.

Is this the reason __________ at the meeting for his carelessness in his work?[ ]

______do you sleep every night? —Six to eight hours. [ ]

How many would you like?— Two, please. [ ]

What color is our national（国家的）flag(旗帜)? It’s ________.