问题
选择题
I _____ a newspaper _____ the telephone rang last night.[ ]
A. read; while
B. was reading; when
C. read; when
D. was reading; while
答案
答案：B
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I _____ a newspaper _____ the telephone rang last night.[ ]
A. read; while
B. was reading; when
C. read; when
D. was reading; while
答案：B