Context may prove extremely valuable in guessing the（ ）of a new

Context may prove extremely valuable in guessing the（ ）of a new word.
A、meanings
B、usage
C、part of speech
D、implication
【正确答案】：A
【题目解析】：Context may prove extremely valuable in guessing the meanings of new words. 语境在新词的意义猜测中是极有价值的。所以选A。