—I’m fed up with these naughty boys!—Maybe we can find a new direction for their _________ energies. How about a football game?
--I can't find Mr. Smith. --It was in the hotel___________ he stayed.
Scientists say it may be five or ten years___________ it is possible to test this medicine on human patients.
My uncle___________ until he was forty-five.
--What when I phoned you?
Sometimes words alone were not enough to _________pupils along the path of knowledge