If all business goes paperless,at least one million tons of paper a year.( )
A.are savingB.will be saved
C.were saved
Do you know _____ girl with long curly hair?
Yes,she is Mary.She plays ______ piano very well.( )
A.a;/B.the;/C.the; theD.a; the
The door bell is ringing, please go and see _______.( )
A.who is itB.who it isC.who was itD.who it was
The notice says the sports meeting has been _______ till next week.( )
A.put onB.put downC.put offD.put up
Li Hua's parents hold different opinions on whether they should have _______ child.( )
A.anotherB.otherC.othersD.the other
Milk quickly goes bad _______ it is put into the fridge.( )
A.ifB.unlessC.whetherD.until