問題詳情

( )You won’t feel happy and satisfied ____you are contented with what you have.
(A)if
(B)unless
(C)as long as
(D)as soon as

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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