Not a single mistake _______ in the last test.
I’m very busy at the moment but I hope to ____ answering your letter next week.
____ he drives or takes the train, he will be here on time.
--- Sorry, Joe, I didn’t mean to. --- Don’t call me “Joe”, I’m Mr Parker to you, and ____ you forget it!
--- Who told you about Dad’s illness? --- The doctor ______.
Give me your favorite blouse and I’ll see if the dirty mark will _____.