问题
选择题
The man was just about to stand up ____ someone sat on the edge of his overcoat. [ ]
A. while
B. suddenly
C. as
D. when
答案
答案：B
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The man was just about to stand up ____ someone sat on the edge of his overcoat. [ ]
A. while
B. suddenly
C. as
D. when
答案：B