问题
选择题
The teacher speaks very loudly all the students can hear her.
A．so that
B．because
C．since
D．When
答案
答案：A
题目分析：句意为：老师说得很大声以致所有的学生都能听清。so that引导目的状语从句，because引导原因状语从句，since和When引导时间状语从句。根据语境可知应选A。
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