Without the development of the Internet, Taobao and Tmall______$ 5.7 billion in sales on 11 November, 2013.

--- Catherine, I have cleaned the room for you.---Thanks. You _______ it. I could manage it myself.

--- Shall we take the 10:20 train?--- No. If we took that train, we       too late.

You ________ pay too much attention to your reading skill, as it is so important.

If you had arrived half an hour earlier, you _____ the well-known writer in the flesh.