When Anna _____the room, a group of young men were talking eagerly round the table.
When Anna _____the room, a group of young men were talking eagerly round the table.
A、enters
B、has entered
C、was entering
D、entered
【正确答案】：D
【题目解析】：when 引导的时间状语从句，主句为过去进行时，从句用一般过去时即可
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