问题
选择题
It is a long time ___
A.when I saw you last
B.since l saw you last
C.for I saw you last
D.then I saw you last
答案
答案:B
It is a long time ___
A.when I saw you last
B.since l saw you last
C.for I saw you last
D.then I saw you last
答案:B