I failed again in the exam and only then _____ how much time I had wasted.
— You know, the task is very urgent and challenging. — Don’t worry, I have ________ people to deal with it.
—Tom, I hope you won’t make the mistake later. —I swear I won’t. You know __________________.
When we got to there, the host _____ his speech and the performance __________.
I will do my best to get it for you ______ I could remember who last borrowed it.
I apologize if I __________ you, but I assure you it was unintentional.