______ the result, I would not have asked you to tell me.
A: If I know
B: Had I known
C: I had known
D: If I knew
A: If I know
B: Had I known
C: I had known
D: If I knew
举一反三
- I would have sent you these photos if I _______your email address. A: had known B: know C: have known D: knew
- It could have saved me some trouble （） about it. A: had I known B: I had known C: did I know D: I knew
- ______, I would have phoned you. A: If I knew it B: Had I known it C: If I know it D: Did I know it
- Little ______ when I took the trip where it would lead me. A: have I known B: had I known C: do I know D: did I know
- Had I know the result, I you to tell me.