if I had arrived yesterday without letting you know beforehand?
举一反三
- —I must apologize for_____________ ahead of time—That’s all right. A: letting you not know B: not letting you know C: letting you know not D: letting not you know
- Had you arrived at the station ten minutes earlier yesterday, you could catch the train.（)
- Had you asked me yesterday, I ______you the money.
- When you are home，give a call to let me know you safely． A: are arriving B: have arrived C: had arrived D: will arrive
- If I had previewed my lessons carefully yesterday, I ______ (know) how to answer the paper now.