题干
I haven't seen Peter, my old friend, ______ a long time. I miss him a lot.
A：with
B：of
C：since
D：for
答案(点此获取答案解析）
D
I haven't seen Peter, my old friend, ______ a long time. I miss him a lot.
A：with
B：of
C：since
D：for
的式子是（ ）