After all this time you’d think he’d have forgotten, ______?

After all this time you’d think he’d have forgotten, ______?
A、didn’t he
B、wouldn’t you
C、hadn’t he
D、don’t you
【正确答案】：B
【题目解析】：本题考查反意疑问句。句中you'd=you would  后句必定是用否定，所以是wouldn't you。