The World Expo (世博会) was openedMay 1st, 2010. [ ]

Miss Liu, do you have any ideas about Jiuzhaigou _______ we will play together this summer holidays?

Are Mr. and Mrs. Wang living alone in the house? —Yes, they have three sons, but ______ of them live in their own houses.

He got on well _____ his neighbours.[ ]

That’s the man _ house was destroyed in the storm.