It _____ four years since we ______to le
题型:选择题
问题:
It _____ four years since we ______to learn English.
A.Is , begin
B.has been , began
C.has, been
D.had been ,began
It _____ four years since we ______to learn English.
A.Is , begin
B.has been , began
C.has, been
D.had been ,began