Paul went to the bookstore with some friends of________.( )
A.heB.himC.himselfD.his
The Caspian Sea is ______ than any other salt lake in the world.( )
A.deepB.deeperC.deepest
The 31st Olympic Games will be held in Brazil ______ August 5th,2016.( )
A.inB.onC.at
There are some ______in the garden.( )
A.potatoB.potatoesC.potatos
Could you please take ______notebooks to the teachers' office?( )
A.youB.yourC.yours
I often play ______chess after class.( )
A.aB.theC./