Jack doesn’t smoke now, but he _______ f
题型:选择题
问题:
Jack doesn’t smoke now, but he _______ for almost twenty years.
A.was smoking
B.had smoked
C.has smoked
D.smoked
Jack doesn’t smoke now, but he _______ for almost twenty years.
A.was smoking
B.had smoked
C.has smoked
D.smoked