The pilot asked all the passengers on board to remain _____ as the plane was making a landing.
It was not until near the end of the letter ______ she mentioned her own plan.
It was only after he had read the papers Mr. 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.