问题
What great trouble I have solving this problem now! —_____ my advice, you ________less trouble.
A:If you had taken, would have had
B:If you took, would have
C:If you had taken, would have
D:If you take, will have
B:If you took, would have
C:If you had taken, would have
D:If you take, will have
正确答案是: