問題詳情
14.No one was at home when I entered the living room because Mom in her office then.
(A) worked
(B) is working
(C) works
(D) was working
(A) worked
(B) is working
(C) works
(D) was working
參考答案
答案：D
難度：計算中-1
書單：沒有書單，新增
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