-- Do you think it necessary us each other ? --- Of course ,I think so . A. with ,to understand B. with ,understanding C. for ,to understand D. for ,understanding 查看更多

 

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—Do you think it necessary ________ us ________ each other?
—Of course, I think so.
[     ]
A. with, to understand
B. with, understanding
C. for, to understand
D. for, understanding

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