問題詳情
33. Nobody answered the phone in the company when I called. They____________.
(A) must leave
(B) should leave
(C) were leaving
(D) must have left.
參考答案
答案：D
難度：簡單0.667
書單：沒有書單，新增
用户評論
【Andy Lin】評論
must + 原形動詞: 對「現在」事實的推測must have + 過去分詞: 對「過去」事實的推測看到前一句為過去式所以選擇(D) must have left.