Why are you so happy?—That’s because an old friend of is coming.

Mum, may I have some cakes?——Sorry, there’s ____ left in the box. I’ll go and buy some for you tonight.

He is short _____ short hair. [ ]

I can’t connect my computer to the Intemet. There must be ______ wrong with it.

When will the World Exposition (世博会) begin? —The Expo will beginMay 1, 2010.[ ]