Why didn’t you try to finish the composition? I tried to, but ______ I could, the bell rang announcing the end of the examination time. A. until B. when C. before D. after

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题目内容（中北大学-大学英语1）

Why didn’t you try to finish the composition? I tried to, but ______ I could, the bell rang announcing the end of the examination time.
A. until
B. when
C. before
D. after

参考答案

随机试卷

延安大学计算机应用基础