问题
选择题
The teacher speaks very loudly _______ all the students can hear her.
A. so that B. because C. since
答案
答案：A
题目分析：句意：老师说的非常大声以至于所有的学生都能听到。A. so that以至于；B. because 因为； C. since自从。故选A。
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