問題詳情
40. When Anita woke up and found her baby boy gone, she assumed that he ______ to one of the places theywent to yesterday.
(A)must return
(B) must to return
(C)must have returned
(D) must be returned
參考答案
答案：C
難度：困難0.39759
統計：A(20),B(3),C(33),D(17),E(0)