________ I known you were there, I would have telephoned.
A: Had
B: If
C: Do
D: Did
A: Had
B: If
C: Do
D: Did
举一反三
- 中国大学MOOC: ________ I known you were there, I would have telephoned.
- I would have come sooner if I had known you there. A: be B: were C: had been D: would have been
- If I had known you were ill, I would have come to see you (early) ____________.
- —The bus should take one hour and a half to get to the airport! I almost missed the flight! —______ you were leaving today, I would have drove you there. A: Have I known B: I have known C: Had I known D: I had known
- Even if I with you then, I much for you. A: would be; would not do B: were; should not have done C: had been; would not do D: had been; should not have done