-Hello,this is Jennifer speaking.May I speak to Tom?
-Sorry,he isn't in.He's gone to the library. ( )
at home
happy
well
studying
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
The sweater ______ belong to Jim.It's much too large for him.( )
A.mustn'tB.can'tC.needn't