My teacher’s words left an _______ mark on me for many years.
We students should __________ ourselves __________ knowledge, for the competition nowadays is very fierce.
He is really considering __________ himself to __________ these children of the poor mountain village.
Linda's parents died when she was a baby, and she was __________ by her aunt.
Last night he saw two dark __________ enter the building, and then there was the explosion.
-Have you __________ how much the trip will cost?-I'm working on it; just have a little patience.