【題組】23. ( )You had better go all out ________ you take the job.(A)unless(B)only if(C)once(D)as long

問題詳情

【題組】23. ( )You had better go all out ________ you take the job.
(A)unless
(B)only if
(C)once
(D)as long as

答案：[無官方正解]
難度：非常困難0
統計：A(0),B(0),C(0),D(1),E(0)