20. John thinks it won’t be long he is ready for his new job.(A) when (B) after (C) before (D) since

問題詳情

20. John thinks it won’t be long he is ready for his new job.
(A) when
(B) after
(C) before
(D) since

答案：C
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)