______ you were busy, I wouldn't have bothered you with my questions.
A: If I realized
B: Had I realized
C: Did I have realized that
D: As I realized
A: If I realized
B: Had I realized
C: Did I have realized that
D: As I realized
举一反三
- Only after I had reached the airport ________ that I had forgotten to take my ticket with me. A: I realized B: have I realized C: did I realize D: I had realized
- No sooner had I told him the truth ______ that I should have remained silent. A: than I had realized B: than did I realize C: when I realized D: than I realized
- Only then _____ the importance of learning English. A: had I realized B: did I realize C: would I realize D: have I realized
- Only when I left my company ______ how much I loved it. A: I realized B: I had realized C: did I realize D: had I realized
- I failed in the final examination last term and only then ___________ the importance of studies. A: I realized B: I had realized C: had I realized D: did I realized