()the headmaster came into the classroom,he was taiking houdlyA If B After C while D When()the headmaster came into the classroom,he was taiking loudlyA If B After C while D When
问题描述：
()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
答
c
答
D，因为后面是正在大声说话，所以应该是个瞬时动作，当他走进教室的时候
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.
答
你好，正确答案选B
after在...之后
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