______ great fun Andrew has ______ DIY in the art room with his classmates!( )
A.What; doingB.What; done
C.How; doingD.How; done
Many Hope Primary schools ______ last year.( )
A.is builtB.was builtC.were built
It's necessary for students ______with their teachers.( )
A.communicateB.communicating
C.to communicate
It's time for I'm a Singer,please ______ the TV.( )
A.turn onB.turn offC.open
Yu Gong kept moving the mountains,______ he was very old.( )
A.soB.althoughC.but
We ______ the tea set for three years.( )
A.have hadB.hadC.have been