The letter____Tommy received from his company yesterday is very important. 

一Do you know ________ Jenny comes to school every day?一Of course I do．She rides her bike．

I have to buy _________of the two books because I don’t know which to choose.

Is she your aunt? What’s ______ name?

— Is there __________ in today’s newspaper? — Yes. Ding Junhui will take on Xiao Guodong in the first ever world ranking final between two Chinese players at the Shanghai Masters on Sunday.