问题
单项选择题
He was asked to speak louder（）all the students in the classroom could hear him.
A.as
B.so as to
C.so that
D.than
答案
参考答案：C
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He was asked to speak louder（）all the students in the classroom could hear him.
A.as
B.so as to
C.so that
D.than
参考答案：C