问题
Tom, ________________ you from taking a hand in that affair, you ______________ in prison.
A:if I didn’t stop; would have stayed
B:had I stopped; would be staying
C:shouldn’t I have stopped; would stay
D:if I hadn’t stopped; would have stayed
B:had I stopped; would be staying
C:shouldn’t I have stopped; would stay
D:if I hadn’t stopped; would have stayed
正确答案是：
