()the headmaster came into the classroom,he was taiking houdlyA I_英语解答

()the headmaster came into the classroom,he was taiking houdly
A If B After C while D When
()the headmaster came into the classroom,he was taiking loudlyA If B After C while D When

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解答

D 先分析句子,（）校长进教室,他正在大声讲什么.
再看选项,A 如果 B 在.之后 C 当.的时候（从句用doing）D 当.的时候（时间点）
选状语从句的连词,主要就是从连词的意思上来分析的.