問題詳情
30. A drill will be held to let the passengers _____ with their assembly station, with their lifesavingequipment and with emergency procedures.
(A) familiar themselves
(B) familiarity themselves
(C) family themselves
(D) familiarize themselves
參考答案
答案：D
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)