問題詳情

15.We________a red ball for a blue one to see if the baby would notice the difference.
(A)substituted
(B) disstituted
(C). constituted
(D). instituted)

參考答案

答案:[無官方正解]
難度:適中0.5
統計:A(0),B(0),C(0),D(0),E(0)

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