--- Steven, where did you come across the famous novelist from England? --- Believe it or not, it was in the supermarket ________ we went shopping last Sunday.
It was only after he had read the papersMr. Gross realized the task before him was extremely difficult to complete.
An awful accident, however, _____occur the other day.
It was probably at that moment _____ I understood what kindness really was.
—What was it that caused the party to be put off? —________ the invitations.
Who ________ that played a trick on the new English teacher?