It is a long time _______they separated,
问题:
It is a long time _______they separated, but it won’t be long ____ they meet again.
A.since; before
B.after; when
C.since; when
D.after; before
It is a long time _______they separated, but it won’t be long ____ they meet again.
A.since; before
B.after; when
C.since; when
D.after; before