What a great weight I felt taken off my mind ________ I heard I had passed the College Entrance Examination!
_______ in 1636, Harvard is one of the most famous universities in the United States.
_______ time, he’ll make a first-class tennis player.
Remember _______ off the light when _______ to bed.
Stop _______ me to hurry up. I can only go so fast.
Certainly I posted your letter — I remember ______ it.