— Thank you so much for saving my son and bringing him home.— Don’t mention it. I only did what anyone else _______ in my place.

—What does the sign over there read?—"No person_______ smoke or carry a lighted cigarette, cigar or pipe in this area．"

I ________ sooner but I didn't know that they were waiting for me.

Jenny，you ________ play with the knife；you ________ hurt yourself.

 You can’t imagine that a well-behaved gentleman ______ be so rude to a lady.