問題詳情

651.Our chemistry teacher was on a one-month sick leave, so the principal had to find a teacher to ____ for her.
(A) recover
(B) navigate
(C) rehearse
(D) substitute

參考答案

答案：D
難度：適中0.666667
統計：A(1),B(0),C(2),D(10),E(0)