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题目内容
（国家开放大学管理英语3.）
I ________ a book when the telephone______.
选择一项：
A.
was reading…rang
B.
read…rang
C.
was reading…was ringing
选择一项：
A.
was reading…rang
B.
read…rang
C.
was reading…was ringing
参考答案
