問題詳情

19. Some birds _______ to warmer places in winter. If you wish to see them, you have to go to southern countries.
(A) utilize
(B) thrive
(C) migrate
(D) trigger

參考答案

答案：C[無官方正解]
難度：適中0.5
統計：A(2),B(1),C(6),D(2),E(0)