I often go hiking _____ my sister. [ ]

I think he lives _____ No.386 West St. — Are you sure _____ that? You’d better make sure. [ ]

We are proud that the 2008 Olympics Games was held in Beijing.—______.

Which would you like, tea or coffee? —_______. I really don’t mind.

Our English teacher was standing ________ us so that she could hear us all clearly. [ ]