单项选择题
A.has used B.has been used C.was used D.is used
By the end of this year, I（）enough money for a holidayA...
单项选择题By the end of this year, I（）enough money for a holiday
A.will save B.will be saving C.will have saved D.will be saved
By next year he（）in New York for five years.A.has worke...
单项选择题By next year he（）in New York for five years.
A.has worked B.has been working C.works D.will have worked
The work（）by the time you get there.A.will have been do...
单项选择题The work（）by the time you get there.
A.will have been done B.was done C.had been done D.has done
