One way to understand thousands of new words is to gain __________ good knowledge of basic word formation.
A、/C
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__________ twenty-fifth of December is __________Christmas Day.
The boy bought a new dictionary__________ he turned for help.
At this moment the bell rang, ________ the end of class.
__________of the land in that district __________ covered with trees and grass.
I __________ the movie, but now I hardly remember it. Can you remind me of its name?