18. If you want to get good graders, you have towork hard. The key _____

問題詳情

18. If you want to get good graders, you have towork hard. The key ______ success is keepingtrying.
(A) for
(B) to
(C) with
(D) at

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)