问题补充：
—May I ask you the writer? —Sorry. I don’t know him. You can ask Sam help.
A. about; for
B. about; about
C. for; for
D. for; about
答案：
(答案→)A. about; for
B. about; about
C. for; for
D. for; about
解析：句意：我能问你关于这个作者的事情吗？对不起，我不认识他，你可以向山姆寻求帮助。ask sb about sth向某人询问某事，ask sb for help向某人寻求帮助，故选A.
