--- Excuse me, sir. Would you do me a favor? --- Of course. What is it? --- I _____ if you could tell me how to fill out this form.
He doesn’t like to be interrupted if he_______ .
—What was the party like? —Wonderful. It’s years_______I enjoyed myself so much.
You will be late_______you leave immediately.
We shall go to help them_______we are free.
________the day went on, the weather turned out to be fine.